Zeolon h

分子筛(含有H离子)

🗣️ 情景例句

But next time, please ask me in advance to make a speech.
不过下一次请事先通知我一声要做演讲喔。
Do you ever study English on Sunday?
你曾经在星期日学英文吗?
What are you doing? he asked. I'm cutting this tree up, answered the woodcutter.
“你在做什么?”他问。“我在把这棵树砍断,”伐木工人回答道。
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