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来源:雅诚德英语网
For example, they work in schools or hospitals, or they do something helpful for the environment.
例如,他们在学校或医院工作,或者他们做一些有利于环境的事情。
For example, they work in schools or hospitals, or they do something helpful for the environment.
例如,他们在学校或医院工作,或者他们做一些有利于环境的事情。