名词
中文翻译：关节
同义词：
['joint', 'joints例句：1. The doctor advised him to exercise regularly to maintain his backjoint health.（医生建议他定期锻炼以保持背部关节健康。）2. During the game', 'he had to use his backjoint to lift the ball.（比赛中，他不得不使用背部关节来举球。）']
例句：
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1. The doctor advised him to exercise regularly to maintain his backjoint health.
医生建议他定期锻炼以保持背部关节健康。
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2. During the game, he had to use his backjoint to lift the ball.
比赛中，他不得不使用背部关节来举球。
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3. After years of sitting in front of a computer, she developed a backjoint pain.
多年坐在电脑前后，她患上了背部关节疼痛。