An old man began to collect rubbish along the river banks years ago.
几年前,一位老人开始沿着河岸收集垃圾。
Next time you go out jogging, why not carry a rubbish bag and collect some litter along the way?
下次你出去慢跑的时候,为什么不带个垃圾袋,沿途收集一些垃圾呢?
We should get together to collect the rubbish twice a year.
我们应该每年聚两次,一起收集垃圾。
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