Trefoil arch
三心花瓣拱，三叶拱
🧩 词语组成解析
n. 车轴草, 三叶草\\n[医] 三叶草, 三叶豆
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
This is heaven, Harry!
这简直是天堂， Harry！
A wonder lasts but nine days.
新鲜事儿不久长。
It seems that man was making a real effort to understand the seasons 20,000 years earlier than has been supposed.
看来人类早就致力于探索四季变迁了，比人们想像的要早20，000年。