Samkhya
数论
🗣️ 情景例句
Don't worry. She'll be fine.
不要担心， 她会好的
A hero is known in the time of misfortune.
时势造英雄。
They may also have used wood and skins, but these have rotted away.
他们也可能用过木头和兽皮，但这类东西早已腐烂殆尽。