Plastics are usually marked with an identification code that shows a recycling symbol and a number from 1 to 7.
塑料通常标有一个标识码，上面有一个回收符号和一个从1到7的数字。
A Little League park in Mansfield, Conn., may have a better game plan - a transparent receptacle with a recycling symbol stamped on the outside.
位于康涅狄格州曼斯菲尔德的小联盟公园，可能有一个更好的回收计划，一个透明的容器外面贴上回收标志。
A Little League park in Mansfield, Conn., may have a better game plan - a transparent receptacle with a recycling symbol stamped on the outside.
位于康涅狄格州曼斯菲尔德的小联盟公园，可能有一个更好的回收计划，一个透明的容器外面贴上回收标志。
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