snake in the grass造句

1、That snake in the grass cheated me of my money.
那个口蜜腹剑的家伙骗了我的钱。

2、The most maddening thing of all is that this snake in the grass can strike at any time.
最让人受不了的是，这尾隐藏在草丛里的蛇随时都可能会出击。

3、Some snake in the grass told the teacher our plan.
有个捣蛋鬼把我们的计划告诉了老师。