Let's shake on it. 我们握手成交吧。shake on sth 双方握手表示同意某事；握手成交例句：I can't believe he broke his promise to me after we shook on it. 我真不敢相信在我们约定好了之后他竟然违背了他对我的诺言。I agree to the terms of this deal, so let's shake on it.我同意这次交易的条款，所以我们就握手成交吧。After several months of negotiations,I think we're now ready to shake on the deal.经过几个月的谈判，我觉得我们现在已经可以成交了。