题目内容
For economic reasons, shipbuilders have designed vessels that can be loaded and ________ in a minimum amount of time with minimum labor.
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Laugh, and the world laughs with you; ______, and you weep alone.
A national debate is now _________ about the manner in which we as a society should protect our natural resources.
In 1943, the writer spent the Thanksgiving Day on a ship on the way to the island of Tulagi in the South Pacific.
The writer got to thinking about his wife and children on the deck after the day’s hard work.
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