continual 与 continuous 有什么区别?
continual 可译为“连续的”“不断的”“频繁的”，但中间可能有短暂的间断（going on all the time without stopping, or with only short breaks）：
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Aren't you tired of this continual rain? 对于这不停的雨你不觉得厌烦吗?
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He hates these continual arguments with his wife. 他讨厌这样无休止地跟妻子争论。continual 常用于指不好的事，例如 continual interruptions (arguments, hammering)。
continuous 则是指“(无间断地)连续的”(going on without a break):
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The brain needs a continuous supply of blood. 大脑需要不断的供给血液。
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This continuous hot weather is oppressive. 这连续的热天气是很难忍受的。
continually 与 continuously 也具有上述区别：
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Bill is continually working late at the office. (CGEL) 比尔总是连续地在办公室工作到很晚。
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He is continually complaining about the noise. 他老是不断地抱怨有吵闹声。请做下面的英语试题：
Our journey was slow because the train stopped ____ at different villages.
A. unceasingly B. gradually C. continuously D. continually(全国四级,99.1-70)