Elbs persulfate oxidation
[化] 埃尔布斯过硫酸盐氧化
🗣️ 情景例句
There's another advanced class today at four o'clock.
今天下午四点钟还有一次高级班。
This is my second trip to the United States, and I really enjoy staying here.
这是我第二次美国之行,我很喜欢这里。
As if this were not enough to reduce you to tears, your husband arrives, unexpectedly bringing three guests to dinner.
好像这一切还不足以使你急得掉泪,你的丈夫接着回来了,事先没打招呼就带来3个客人吃饭。
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