如果你考虑辞职，你应该三思后果。

If you're considering quitting your job, you should ___think ___twice about the consequences.

在同意签署合同之前，一定要三思，尤其是没有阅读的情况下。

Always ___think ___twice before agreeing to sign a contract without reading it.

考虑到涉及的风险，我会三思而后行，然后再开始这样的冒险。

Given the risks involved, I would ___think ___twice before embarking on such a venture.