Separatography
无色化合物的吸附分离
🗣️ 情景例句
Would you please account for these problems?
请你谈谈这些问题，好吗？
By little and little the wolf eateth the sheep.
狼吃羊，一只一只进肚肠。
I'm sure I can do better than that.
我肯定会超过1分12秒的。