Train arm
[机] 轮系臂
🧩 词语组成解析
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
Don't count on a salary increase this year.
别指望今年会给你加薪。
He that will lie will steal.
说谎者必行窃。
They examined the remain and John got all his money back.
他们鉴定了这些残留物。约翰拿回了他损失的全部数额。