形容词
中文翻译：迟钝的
同义词：
['sluggish', 'slow', 'unwieldy']
例句：
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1. The old man is very sluggish in his movements.
这位老人行动非常迟缓。
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2. The new software is designed to be unwieldy, making it difficult for users to use.
这款新软件设计得笨重，使得用户难以使用。
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3. The old car is very unwieldy, making it difficult to drive.
这辆旧车非常笨重，驾驶起来很困难。