give something the thumbs up竖起大拇指，意思就是赞成同意这件事情。

【例句】
Wait until I give the thumbs up before you send that email to head office.
直到得到我的赞成，你才能把那封邮件发送给总部。

Daisy's cake was delicious – I'd definitely give it the thumbs up.
黛茜做的蛋糕十分美味。我肯定要竖起大拇指。