adv.据认为,据推测,据称,一般相信
Supposing he is absent, what shall we do?
假使他不在, 我们将怎么办 呢 ?
Supposing that she changes her condition in life, what then?
假设她结了婚, 以后会 怎样 ?
You are only supposing this on hearsay, you have no proof.
你只是根据传闻想像而已, 并没有证据.