Many man-made satellites have been sent up into space by many countries.

sent up into 哪个和哪个 是词组啊

Many man-made satellites have been sent up into space by many countries.

许多人造卫星已被许多国家送入太空。
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第1个回答  2017-01-26
economic efficiency and benefit
第2个回答  2017-01-26
Many man-made satellites 是词组

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