Hemochrometer
血色计
🗣️ 情景例句
I have just begun to learn and my serve isn't very good.
我刚刚开始学习，发球不太好。
I'm afraid you will miss your test.
我怕你会错过测验。
I'm afraid all these offices are non-smoking offices.
恐怕这些办公室都是禁烟办公室。