Chromophotometer
比色计
🗣️ 情景例句
What is wrong with you?
你怎么啦？
I would like to call a gardener to come this afternoon.
我要叫一个园丁今天下午来。
Hold on for a moment, please. I'm sorry he isn't here right now. May I help you?
请稍等一下。对不起，他现在不在这里。我能帮您的忙吗？