Binet-cauchy theorem
[计] 宾纳一柯西定理
🧩 词语组成解析
[计] 宾纳一柯西
[计] 柯西
🗣️ 情景例句
Fortunately, they returned safely.
说来幸运，他们平安回家了。
You're sure of passing the exam if you work hard.
只要用功，主汪定能考及格。
She was choosing a book. He told her about the accident.
她正在选书。他将发生的情况告诉了她。