Bertrand postulate
[计] 伯特兰假设
🧩 词语组成解析
n. 伯特兰(男子名)
🗣️ 情景例句
He is interested in collecting foreign stamps.
他对收集外国邮票有兴趣。
He used to live in my neighborhood.
他曾与我是邻居。
a box of pills, or a small jar of ointment,
一盒药丸、一小瓶药膏