Nalcite
离子交换树脂
🗣️ 情景例句
This is no small accomplishment.
这是非同小可的成就。
Will you accept the charge.
你愿意付电话费用吗？
A man was walking through a wood and he came across a woodcutter.
一个人正步行穿过一片树林，他遇见一个伐木工人。