Hemochrometer
血色计
🗣️ 情景例句
What's that, Mr. Carlson?
什么事， Carlson先生？
How much does a round trip ticket to go there cost?
一张去那边的往返票要多少钱？
Hasn't Mary told you?She invited Charlotte and me to dinner this evening.
玛丽没有告诉你吗？她邀请我和夏洛特今晚去吃饭。