Matroid
矩阵胚, 拟阵
🗣️ 情景例句
You look great.
你看起来很神气。
That which one least anticipates soonest comes to pass.
事非逆料偏易发生。
Half an hour later, another man struck a match for a cigarette and this time the whole of the inside of the ship caught fire.
半小时后，又一个工人擦亮火柴想点支香烟，这下整个船舱都起了火。