weigh的名詞是什么

　　例句：

　　You must weigh the benefits against the cost.

　　你一定要權(quán)衡利益與成本二者的得失。

　　How many pounds do you weigh?

　　你體重多少磅？

　　The smart bin can weigh the food.

　　智能垃圾桶可以稱食物的重量。