Submatrix
[计] 子矩阵
🗣️ 情景例句
There's a slight chance of some snow tomorrow.
明天也许会下点雪。
I was born in China and brought up in the U.S.A.
我出生在中国，在美国长大。
Rays from the sun excite and energize the atmosphere of the earth,
太阳光刺激了地球的大气层，并给予它能量；