Reciprocating
[医] 交互的, 往复的
✅ 同义词
🗣️ 情景例句
Remember that wonderful little balcony
还记得那个美妙小阳台，
How is Helen?
海伦好吗？
It has to be tall because it is like a giant block and tackle,
井架必须很高，因为它像一个巨型滑轮组。