Optical indices
[医] 光学指数
🧩 词语组成解析
pl. 索引, 指针, 指数, 指标
🗣️ 情景例句
then you've got to smile first.
你就得先笑一笑。
We think your Chunlan brand air conditioners will be selling well at this end and we are looking forward to receiving your samples soon.
我们认为你方的春兰牌空调机在这里会很畅销，希望很快收到你们的样品。
In that case, we'd like cash on receipt of invoice.
这样的话，您在收到帐单时请付现。