Union swivel
[机] 管套活转结
🧩 词语组成解析
swivel
[['swivəl]]
n. 转环, 旋转轴承, 转椅座架\\nv. (使)旋转
🗣️ 情景例句
When you're ready to get off, remember to press the button near your seat.
当你要下车时，记得按你座位旁的按钮。
Are you going anywhere?
你打算上哪儿去玩？
No. Why?
不知道。怎么回事？