Matroid
矩阵胚, 拟阵
🗣️ 情景例句
If the real owners don't come to claim Gemma ...
如果狗的主人没认领Gemma……
The knife is dirty, Would you bring me a clean one, please?
这刀子是脏的，请你拿个干净的给我。
The noise pollution survey revealed a rather spurring and possibly amusing old fashioned source of noise.
这个有关噪音的污染调查还揭示了一种出人意外而同时可能会引人意外而同时可能会引人发笑的老式噪音源。