Once he made up his mind to do something, there was no stopping him.

他一旦下定决心做什么事，没有什么可以阻止他。

《柯林斯英汉双解大词典》

Johnny made up his mind to give up smoking.

约翰尼下定决心戒烟。

youdao

She made up her mind to go and find it herself.

她决定自己去找。

youdao

and so -- very slowly -- I made up my mind to take the life of the old man, and free myself of the eye forever.

VOA: special.2009.05.16

The foreign secretary said he had made up his mind to stay on the day of the local and European elections.

BBC: Mandelson warns PM of more plots

Labour education spokesman Des McNulty said it appeared Mr Russell had made up his mind to cut teachers' pay and conditions.

BBC: Review of McCrone teaching deal announced

He soberly viewed the evidence and made up his mind to quit.

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