Je was op zoek naar: although he is the only one who (Engels - Wels)

however , he is not the only one who is right
fodd bynnag , nid efe yw'r unig un sydd yn gywir

he seems to be the only one who believes that
ymddengys mai ef yw'r unig un sy'n credu hynny

that is the only change
dyna'r unig newid

that is an important indicator , but not the only one
mae hwnnw'n ddangosydd pwysig , ond nid dyna'r unig un

you're the only one for me
ti yw'r unig

he is not the only one , and it is because of labour's dogma
nid ef yw'r unig un , ac mae hynny oherwydd dogma llafur

that is a specialist unit and is the only one in wales
uned arbenigol yw honno a hi yw'r unig un yng nghymru

hindsight is the only perfect science
Ôl-ddoethineb yw'r unig wyddor berffaith

jocelyn davies : i am not the only one who cannot hear
jocelyn davies : nid fi yw'r unig un na all glywed

education is the only hope for our children
addysg yw'r unig obaith i'n plant

i was the only one who voted against the proposal in the committee
fi oedd yr unig un a bleidleisiodd yn erbyn y cynnig yn y pwyllgor

gwenda thomas's question is not the only one that was rejected
nid cwestiwn gwenda thomas yw'r unig un a wrthodwyd

a confirmatory vote is the only way to settle this
pleidlais gadarnhau yw'r unig ffordd i setlo hyn

a public inquiry is the only realistic way forward
ymchwiliad cyhoeddus yw'r unig ffordd ymarferol ymlaen

collaboration and partnership is the only way forward , david
cydweithredu a phartneriaeth yw'r unig ffordd ymlaen , david

encouraging companies and individuals is the only sensible answer
annog unigolion a chwmnïau yw'r unig ateb synhwyrol

admit it , jonathan -- your party is the only one that wants to set up embassies
cyfaddefwch , jonathan -- eich plaid chi yw'r unig un sydd am sefydlu llysgenadaethau

i am sure they are not the only ones
yr wyf yn siwr nad y rhain yw'r unig enghreifftiau

digital satellite is the only current option , in many areas , for those who want digital television
teledu digidol yw'r unig opsiwn ar hyn o bryd , mewn sawl ardal , ar gyfer y rheini sydd am dderbyn teledu digidol