垃圾收集还不能做到完全不可见，这肯定还有很长的路要走。
While garbage collection may not yet be totally invisible, it sure has come a long way.
纽约和其他许多拥挤的大城市一样充斥着随处可见的艺术品-没准就掉进或者被扔进垃圾桶，要不就是听任从虚空穿越而来的香蕉皮的摆布。
New York is like many big, crowded cities in having plenty of art to bump into - or drop or toss in the trash or surrender to the cosmic banana peel.
在我们生活中常常可以听到人们抱怨：太糟糕了周围的环境，空气污染严重，水质差，灰尘满天，垃圾随处可见。
In our lives can often hear people complain about: too bad the surrounding environment, air pollution is serious, poor water quality, dust all over the sky, garbage everywhere.
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