Oxygen content
[医] 氧含量
🧩 词语组成解析
🗣️ 情景例句
What's your regular practice concerning terms of payment?
你们常用什么付款方式？
I'm going by air.I like flying.
我将坐飞机去，我喜欢飞行。
He's been there for over two years. He's been there since two years ago.
他到校有两年多时间了。他两年前就到那儿学习了。