It is necessary for them to get an electrician to do the work for them
it在中学英语学科学习里的用法 ... It is fun for her to study, but it is difficult to studyand work at the same time.对于她来 说学 It is necessary for them to get an electrician to do thework for them.对他们来说请一位电工 It will be no good learning without practice. 学习而不实践是不好的。 ...
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