Ffd
[医][=focal film distance]焦点胶片距离
🗣️ 情景例句
Now that you mention it, I guess I am.
你们一提起来， 我想我也饿了。
Do you work near the airport?
你在机场附近工作吗？
Today we have two new students. Their names are Lucy and Lily.
今天我们班来了两位新同学，他们的名字叫Lucy和Lily。