Phase-contrast microscope
相衬显微镜
🧩 词语组成解析
🗣️ 情景例句
How long is this flight?
这趟飞行有多长时间？
I don't think so. I know several convenient hotels. Let me make some calls.
我认为没有，我知道有几家便利旅馆，让我打几个电话。
'Everyone's losing money these days,' he said.
“现在大家都在丢钱，”他说。