Flat arch
平拱，平式炉顶，扁拱
🧩 词语组成解析
flat
[flæt]
adj. 平的;单调的;不景气的;干脆的;
adv. （尤指贴着另一表面）平直地;断然地;水平地;直接地，完全地;
n. 平地;公寓;平面;
vt. 使变平;[音乐]使（音调）下降，尤指降半音;
vi. 逐渐变平;[音乐]以降调唱（或奏）;
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
What time does the Michigan football game come on?
Michigan队的足球赛何时开始？
The dinner was superb. Who cooked it?
菜太棒了！谁做的？你吗？
Suddenly, there was a slight trembling sound from below, and the captain went down to see what had happened.
突然，从船舱下部传来一声微颤音，船长走下船舱去查看究竟。