Semicircular arch
半圆拱
🧩 词语组成解析
a. 半圆的\\n[医] 半环形的
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
Generally speaking, it's quite a fair settlement.
大致上说，这样解决很恰当。
What's done by night appears by day.
若要人不知，除非己莫为。
He struck his attacker on the ear.
他打了那个攻击者一耳光。