名词
中文翻译：后关节
同义词：
['hinge', 'connection例句：1. The back joint of the chair is loose.（椅子的后部连接处松动。）2. The team needs to fix the back joint before the game starts.（在比赛开始前，球队需要修复后部连接处。）3. The doctor advised him to exercise regularly to maintain the back joint health.（医生建议他定期锻炼以保持后部连接处的健康。）']
例句：
-
1. The back joint of the chair is loose.
椅子的后部连接处松动。
-
2. The team needs to fix the back joint before the game starts.
在比赛开始前，球队需要修复后部连接处。
-
3. The doctor advised him to exercise regularly to maintain the back joint health.
医生建议他定期锻炼以保持后部连接处的健康。