Photelometer
[医] 光电比色计
🗣️ 情景例句
and ... and when the baby comes,
而且……而且婴儿出生以后，
Why didn't you contact me?
为什么你不和我联系？
We offered them food and spoke to them kindly, but they remained motionless.
我们给他们东西吃，客客气气地同他们交谈，但他们却一动也不动。