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
I feel hot!
我感觉不错。
You'd better run or you're going to be left behind.
你最好跑不然你将落在后面。
I think that they'll move in the day after tomorrow.
我想他们将会在后天搬进来吧。