乖乖邓子
下定决心： make up one's mind; 例句：一旦他下定决心做某件事，就没有什么能够阻止他。Once he made up his mind to do something, there was no stopping him
小精灵926
你好，高兴为你回答。请采纳，谢谢！make up one's mind 比如 I make up my mind to learn English.我下定决心学英语。或 be determined to do 比如 The president is determined to promote economic growth. 总统决心促进经济增长。
