The teacher left the classroom, leaving me in charge of the cleaning task.
老师离开了教室，留下我负责打扫任务。
Cleaning the inside of a laptop computer can be a difficult task.
清洗一台笔记本电脑里面可以是一个艰巨的任务。
Cleaning up waterways is an enormous task.
在航路上面清洁是一件巨大的任务。
Family members usually share the task of cleaning the whole house.
家庭成员通常共同承担清洁房间的任务。
Your task is cleaning the Windows.
你的任务就是擦窗户。
Pollution control and environment cleaning become the most important task in contemporary society.
防治污染、净化环境是当今社会的重要课题。
Pollution control and environment cleaning become the most important task in contemporary society.
防治污染、净化环境是当今社会的重要课题。
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