handle properly的用法和樣例：
例句
- Industrial liquid waste , when properly treated , can equal fertilizers in usefulness.
經過適當處理的工業廢液在效用方面抵得上肥料。 - To help farmers dispose of their livestock waste properly, a door-to-door livestock waste collection service commenced in July 1996.
為方便禽畜飼養人適當處理禽畜廢物，當局自一九九六年七月起，提供逐戶收集禽畜廢物的服務。
