Block tridiagonal matrix
[化] 块三对角矩阵
🧩 词语组成解析
block
[blɑk]
n. 块;街区;<英>大楼，大厦;障碍物，阻碍;
vt. 阻止;阻塞;限制;
🗣️ 情景例句
I am happy to do it for you.
我很高兴为你们做这件事。
It's a hard job, but I hope he can make it.
这不是件容易的差事，但我希望他能做到。
In spite of all that has been said, the tourists have been picking leaves and cutting their names on the tree-trunk.
尽管有上述种种说法，但游客们还是照常摘树叶和把他们的名字刻在树干上。