假使

If you go to bed now, I’ve read you a bedtime story.

假使你现在就上床睡觉,就念个睡前故事给你听。

Supposing it rains what shall you do?

假使下雨，你会怎么办呢？

I do not use many woods, but when I do I prefer burled types if they are available.

使用木材，假使用且能找到，瘤型的。