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
When you understand the cultural background, you can better use the language.
当你了解了文化背景,你就能更好地运用语言。
I used to have dinner at 7:30 and go to bed early.
我过去常在7:30吃晚饭并且早睡觉。
is as the proportion of the total vocabulary of his mother tongue against those words of his own baby talk that are taken up into the vernacular of his family.