I have no option but to charge you strictly to say nothing about it.我别无选择，只能责令你严守秘密。These people have no option but to take low-paid unattractive work.这些人除了接受低薪乏味的工作外，别无选择。He has talked himself into a position where he will have no option but to go.他通过耍嘴皮子得到了一个职位，现在他只能硬着头皮去了。