Knuckle arm
[机] 转向节臂, 羊角臂
🧩 词语组成解析
knuckle
[['nʌkəl]]
n. 指节, 蹄爪, 膝关节\\nv. 以指节打, 以手指射
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
I had lots of fun tonight.
今晚我玩得很开心。
I'm afraid all my efforts were in vain.
我担心我的努力全白费了。
Don't you think we should add a sentence here like this?
难道你不觉得我们应该在这儿加上一句话？