Chenico concentrator
[建] 开美科牌浓缩器
🧩 词语组成解析
concentrator
['kɒnsenˌtreɪtə]
n. 集中器;集线器;
🗣️ 情景例句
I can't express myself very well in English.
我用英语表达不好。
She's very well,thank you.
她很好，谢谢您。
I'll be there next Monday at noon.
下个星期一中午吧。