If he eats the cake, it could kill him; if he refuses it, it will make his wife angry and she will reject him: a double bind.

如果他吃了蛋糕，它足可以要了他的命；如果他拒绝这么做，就会激怒太太而且她就会拒绝接纳他：一个双重约束。

youdao

If he refuses, strongly recommend he change or leave.

如果他拒绝改变，就强烈建议他改变或离开。

youdao

If he refuses, what I will do will depend on the driver's attitude.

如果他拒绝，我会做什么，将取决于司机的态度。

youdao

If he refuses to sign it or claims he was abused, an autopsy will be performed.

CNN: Timothy McVeigh

House Democrats plan to censure Wilson if he refuses to apologize on the House floor this week.

CNN: Wilson: No more apologies for outburst against president

If he refuses to do that and still approves Keystone XL, the first thing that pipeline will run over is his credibility on climate.

CNN: The real, and dirty, Obama scandal