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It's wasteful to throw away glass,paper and metal.
扔掉玻璃，纸张和金属是浪费行为。
I never throw anything away.
我从来不扔东西。
A:It's already 10 o'clock.why are you still playing computer games?
已经十点了，为什么你还在玩电脑游戏。
B:Come on,I have been playing it for less than 1 hour.
别这样，我才玩了不到一个小时。
A:Don't throw away the best years of your life.
不要浪费你生命中最美好的时光。
B:Fine.
好吧。