Farvitron
线振质谱计
🗣️ 情景例句
You look young for your age.
你比你的实际年龄年轻多了。
I like collecting stamps.
我喜欢收集邮票。
No one suspected that there might be someone else on the farm who had never been seen.
谁也没想到农场竟会有一个从未露面的人。