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
No, I'm not.
不,我不觉得。
The wise man knows he knows nothing,the fool thinks the knows all.
聪明人自认一无所知,愚笨人自负无所不晓。
The early climbers were looking for the easiest way to the top, because the summit was the prize they sought, especially if it and never been attained before.