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
That's all right. I hope we can help you at some other time. Good-bye.
好了，希望我们今后还能给你帮助。再见。
Can I take your order?
您要点菜吗？
This caused the construction of gigantic buildings where too large masses of human beings are crowded together.
这样就导致了许多摩天大厦拔地而起，大厦内众多的人挤在一起。