Rotor arm
[机] 转动臂
🧩 词语组成解析
n. 转子, 旋筒, 转动体\\n[化] 转鼓; 转轴
arm
[ɑrm]
n. 臂;武器;[复数]战事;权力;
vi. 准备（斗争），准备行动（against）;
vt. 装备（防御工事）;准备（攻击或迎击）;配备;防护;
🗣️ 情景例句
When would you like to return?
你打算什么时候回来？
Did you go to the store yesterday?
你昨天去商店了吗？
It has been said that everyone lives by selling something.
据说每个人都靠出售某种东西来维持生活。