Central veios
[医] 中央静脉
🧩 词语组成解析
🗣️ 情景例句
We can write letters. It's cheaper than calling.
我们可以写信就好，那比打电话便宜。
Everything is going according to schedule.
一切在按照预定计划进行。
I haven't got any either.
我也没有。