Prepurification
预纯化(作用)
🗣️ 情景例句
Maybe I can help. Tell me what it is, Susan.
也许我能帮忙。说给我听听 ，Susan。
Sorry, I'm engaged.
对不起，我有约在先了。
Sure I was. I'll never forget that.
我当然在那儿了。我永远都不会忘记那次地震。