Counterdiffusion
反扩散
🗣️ 情景例句
What's up?
什么事？
Too much humility is pride.
过分谦虚即骄傲。
One authority on spiders made a census of the spiders in grass field in the south of England,
一位研究蜘蛛的权威对英国南部一块草坪上的蜘蛛作了一次调查。