Separatography
无色化合物的吸附分离
🗣️ 情景例句
She is giving me piano lessons in exchange for her English classes.
我教她英语，她教我弹钢琴。
True blue will never stain.
真金不怕火。
I've no idea. He just asked me to come round for supper.
我也不知道，他只是叫我过来吃晚饭。