heavy与weight

问题描述:

heavy与weight
原句:How heavy is that piece of luggage?(改为同义句)
What's the weight of that piece of luggage?
为什么用what' the weihgt 不用what's the heavy?

heavy 重,
weight重量
用中文的意思都可以理解了
你多重啊?=你重量是多少?
明白?