Preconcentrator
[化] 预浓缩器
🗣️ 情景例句
If the mood takes me, I'll head down the beach for an evening stroll.
如果心情不好，傍晚我会到海边散步。
I'm Dennis. I am here to meet you today.
我是丹尼斯，今天我到这里来接你。
I think that maybe his Chinese teacher will give Jim some work to do during the holiday.
我想吉姆的汉语老师也许会给他布置一些假期作业。