Cationite
阳离子交换剂
🗣️ 情景例句
but this is an important opportunity.
但这是一次很重要的机会。
Do you often work for Mr.stone during the holidays?
你常常在假日期间为斯通先生工作吗？
Long car journeys are even less pleasant, for it is quite impossible even to read.
乘汽车作长途旅行则更加不舒服，因为连看书都几乎不可能。