2. 外语
  3. The machine can’t be made perfect overnight; in fact, it should be improved ______.

The machine can’t be made perfect overnight; in fact, it should be improved ______.

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问题 The machine can’t be made perfect overnight; in fact, it should be improved ______.
选项 A、one after another
B、by turn
C、right away
D、step by step
答案D
解析 本题测试词组辨析。本句的意思是：“机器不可能一夜间变得完美，应该一步一步地改进。”所以D为正确答案。one after another：一个接一个。例如：The poor came to get the free food one after another，(穷人们络绎不绝地来领取免费的食品。)by turn：按照次序。例如：You should stand in line and see the doctor by turn．(你应该排队，按次序看病。)right away：马上。例如：I’ll come right away(我马上就来。)
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