Indefinite metric
[计] 不定度量
🧩 词语组成解析
🗣️ 情景例句
I hope I'll go down in history as a famous English professor.
我希望成为未来历史上有名的英文教授。
A friend is never known till a man have need.
不到患难时，永远不能认识真正的朋友。
He is respectful to his elders.
他对长辈很恭敬。