动词
中文翻译：抱怨
同义词：
['grumble', 'complain', 'harp on']
例句：
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1. She was rant about the inconvenience of the traffic jams.
她抱怨交通堵塞的不便。
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2. He rants about his boss's rudeness all the time.
他一直在抱怨他的老板的粗鲁。
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3. The teacher rants at the students for not paying attention during class.
老师因为学生们上课不专心而对学生们发牢骚。