If you don't understand some of these words, look them up in the diction - ary.
如果这些词中你有不认识的，可以查词典。
When you do this exercise, make changes in the sentence structure when (if) nece ary.
做这个练习时，必要时可以改动句子结构。
When you do this exercise, make changes in the sentence structure when (if) nece ary.
做这个练习时，必要时可以改动句子结构。
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