Arch axis
[机] 拱形轴
🧩 词语组成解析
arch
[ɑ:tʃ]
n. 弓形;拱门;拱形物;足弓，齿弓;
vt. （使）弯成拱形;用拱连接;向后弯;
vi. 拱起;成为弓形;
adj. 主要的;首要的;调皮的;淘气的;
🗣️ 情景例句
Don't talk with your mouth full.
嘴里满是东西时别说话。
You'd better wear a light jacket.It's chilly today.
你今天最好穿一件浅色的夹克衫。 今天很冷。
What time will the next train leave?
下一班火车什么时候开？