cast away

扔掉

例句与用法：

I can't bear young people casting away their youth.

我无法忍受年轻人虚掷青春。

It's time we cast away those dull old clothes and bought some cheerful new ones.

是我们该扔掉那些古板的旧衣服而买些赏心悦目的新的新衣服的时候了。

详细释义：

1. 丢掉

Don't cast away the used books.

别把那些用过的书丢掉。

2. 浪费

You should never cast away your time.

你决不能浪费时间。