动词
中文翻译：挠
同义词：
['tickling', 'rubbing', 'scratching']
例句：
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1. The catwas scratching at the door to getin.
猫在抓门想进来。
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2. Shescratched her arm where she had beenbitten by a spider.
她抓了抓被蜘蛛咬伤的手臂。
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3. The dog was scratching at thedoor for attention.
狗在抓门希望得到关注。