第六个星球上住着一个老先生。
看见一个老先生横过马路被自行车撞了，我急忙跑过去扶他！
I saw an old man being hurt by a bike while walking across the street.
在一个炎热的夏天，一个老先生昏倒在大街上。不多时，一些人就围了过来。
On a hot summer day an elderly gentleman faints in the street. A small crowd immediately gathers around him.
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