Decolorite
多孔阴离子交换树脂
🗣️ 情景例句
I heard that some tours actually go down into the canyon. Is that true?
我听说有的旅游团真正下到峡谷里去了。那是真的吗？
Bring it on!
我跟你拼了！
Duck your head as you go through the door there.
经过那儿的门时，请将头放低。