•They've set up a plan whereby you can spread the cost over a period.他们已经制订了这样一个计划，允许在一段时间内分期付款。

•We need to devise some sort of system whereby people can liaise with each other.我们需要设计一套办法，人们能够藉以互相保持联络。

•It's put me in a position whereby I can't afford to take a job.这使我到了一种连工作也做不了的地步。