think over 与think twice区别 最好有例句

1.Please think over what I've said.
请仔细考虑我说的话.
2.I'd like more time to think things over.
我要多用些时间把事情好好想想.
think twice:
vi.重新考虑(仔细考虑)
1.I advised him to think twice before deciding to quit school.
我劝告他在决定退学之前再仔细考虑一番.
2.You should think twice about employing someone you've never met.
你要雇用素未谋面的人应三思而行.
3.As this transaction involve a very large sum,buyer have to think twice before deciding.
由于这笔交易金额很大,买主在做出决定之前必须再三考虑.