名词
中文翻译：肘部
同义词：
['knuckle', 'elbow例句：1. He sat on the couch with his elbows resting on his knees.（他坐在沙发上，肘部搁在膝盖上。）']
例句：
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1. He sat on the couch with his elbows resting on his knees.
他坐在沙发上，肘部搁在膝盖上。
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2.The dancer's knuckles were scraped by the sharp edge of the blade.
舞者的手肘被刀尖刮伤了。
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3.She held her hands together in front of her chest as she knelt down to inspect the knuckle.
她跪在地上，双手合十放在胸前，检查手肘。