Saf
(美)战略空军
🗣️ 情景例句
You've changed a lot since I last saw you.
自从我上次见到你以来，你改变了很多。
I had a shot of penicillin.
我打了一针青霉素。
When it has been decided where we are going to drill, we put up at the surface an oil derrick.
当确定钻孔地点后，我们就在那里竖起一个井架。