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
Marketing promotion.
市场推广。
This driver cannot driver any farther because there is a man in the manhole.
由于
The pie committee telephoned a local garage owner who arrived in a recovery truck to salvage the pie dish.
馅饼委员会给当地汽车修理库老板打电话，他闻讯后开着一辆急修车前来打捞盘子。