Bidiagonal matrix
[计] 两对角线矩阵
🧩 词语组成解析
[计] 对角的
🗣️ 情景例句
You are twenty-one, a grown-up young lady old enough to make up your own mind.
你已经21岁了，已经到了可以自己做主的年龄了。
I 'm going to dial the number.
我要拨这个号码。
I caught the last bus.
我赶上了最后一班车。