Roedd y tymor hydref yn lliwgar yn High-Tech City.

The autumn season was colorful in High-Tech City.

Roedd adeiladau uchel Tech Towers yn disgleirio yn erbyn y lliwiau euraidd a chopr o'r dail cwympo.

The tall buildings of Tech Towers gleamed against the golden and copper hues of the falling leaves.

Roedd y nofel dref fawr yn lle bywiog, ond roedd ganddi ei chyfrinachau cuddiedig hefyd lle gallai dychymyg rhywun esgyn.

The big city novel was a lively place, but it also had its hidden secrets where one's imagination could soar.

Yn Tech Towers, roedd tri ffrind yn gweithio'n docs mewn labordy glec a chyfoes.

In Tech Towers, three friends worked as docs in a sleek and modern lab.

Roedd Dylan, Carys, ac Eleri mewn cyffro.

Dylan, Carys, and Eleri were excited.

Roedd yr ysgol yn cynnal ei ffair wyddonol flynyddol.

The school was holding its annual science fair.

Roedd Dylan, yn arbennig, yn awyddus i greu rhywbeth anarferol a chael ei adnabod.

Dylan, in particular, was eager to create something unusual and get recognized.

Roedd yn drech gyda thechnoleg a dyfeisgarwch, a’i freuddwyd oedd ennill y nod cyntaf.

He was skilled with technology and innovation, and his dream was to win the first prize.

Roedd Carys, ei gymrawd dosbarth, wastad yn gadarn.

Carys, his classmate, was always steady.

Roedd ei syniadau'n ymarferol ac yn realistig.

Her ideas were practical and realistic.

Roedd Eleri, ar y llaw arall, yn llawn brwdfrydedd creadigol.

Eleri, on the other hand, was full of creative enthusiasm.

Roedd ganddi'r gallu i feddwl yn anghonfensiynol ac ychwanegu sglein at unrhyw gynllun.

She had the ability to think unconventionally and add a sparkle to any plan.

Dros flwyddyn roedd y tri wedi cynllwynio prosiect cymhleth ar gyfer y ffair.

Over a year, the three had devised a complex project for the fair.

Roedd y ddyfais i fod i ddangos cam newydd mewn meddwl dylunio technolegol.

The device was meant to demonstrate a new step in technological design thinking.

Ond, gyda dim ond diwrnod tan y ffair, digwyddodd trychineb.

But, with only a day until the fair, disaster struck.

Aeth popeth am ben ei waered. Roedd y prosiect yn gweithio'n anghywir ac roedd amser yn brin.

Everything went haywire, and time was running out.

Gyda'r gwynt yn chwifio dail i lawr y strydoedd cul, roedd Dylan yn teimlo'r pwysau.

With the wind sweeping leaves down the narrow streets, Dylan felt the pressure.

"Rhaid inni wneud rhywbeth, ar hyn o bryd," meddai Dylan, gweld panig yn disgleirio yn ei lygaid.

"We have to do something, right now," said Dylan, a flash of panic in his eyes.

Roedd Carys yn awgrymu y dylent raddnodi i lawr y cynllun.

Carys suggested they scale down the plan.

"Yn syml ac yn effeithiol," meddai hi'n bwyllog.

"Simple and effective," she said calmly.

Roedd Eleri'n cytuno.

Eleri agreed.

"Gallwn ni ddangos safbwynt creadigol gyda siocied syml," awgrymodd.

"We can showcase a creative perspective with a simple circuit," she suggested.

Felly, aeth y tri ati i weithio gyda'r nos.

So, the three set to work through the night.

Roedd teimlad o undod rhwng y tri wrth iddynt droi stêm iddi a thynhau gyŵn eu drychfeddyliau.

There was a sense of unity among them as they put their heads together and refined their ideas.

Roedd miri'n codi wrth iddynt weld eu syniadau'n cyflwyno ar ffurf newydd.

Excitement rose as they saw their ideas take on a new form.

Yn y ffair, roedd y neuadd yn llawn myfyrwyr brwdfrydig a roddodd rally o gymeradwyaeth i gychwyn newydd y tri.

At the fair, the hall was full of enthusiastic students who gave a round of applause to the trio's new start.

Er na lwyddodd Dylan i gipio'r wobr gyntaf, achubodd y deimlad o'u cyflawniad rhywbeth arbennig iddo.

Although Dylan didn't manage to grab the first prize, the feeling of their achievement was something special to him.

Cafodd eu prosiect ei ganmol am y fflach o arloesedd, ac felly cafwyd gwobr arbennig iddynt am greadigrwydd ac arloesi.

Their project was praised for its flash of innovation, earning them a special award for creativity and innovation.

Dylan yn y diwedd deallodd yn fwy pwysig yw'r sgiliau a meithriniadau'r gwaith gyda'i gyfeillion nag unrhyw gydnabod mynnu.

In the end, Dylan realized that the skills and nurturing of the work with his friends were more important than any demanded recognition.

Wedi i’r ffair ddod i ben ac i’r haul dro at goed y ddinas ddisgleirio fel cragen aur, deallodd Dylan wrth edrych tuag at Tech Towers, prydferthwch y daith fio gangefn y gobaith.

After the fair ended and the sun turned the city trees to a glowing shell, Dylan, looking toward Tech Towers, understood the beauty of the journey behind the hope.

Roedd y fraint iddo yn dod trwy gydweithio ac addasu, yn gystal â ffurf symlach.

The honor to him came through collaboration and adaptation, as well as a more straightforward form.

Roedd y profiadau a'r dysgu gyda Carys ac Eleri'n fwy gwerthfawr na'r ffigyr gwybodaeth.

The experiences and learning with Carys and Eleri were more valuable than the figure of knowledge.

Roedd eisoes wedi ennill ei wobr fwyaf.

He had already won his greatest prize.