O2
[医] 氧(8号元素); 两眼
🗣️ 情景例句
Nixon also used chopsticks at the welcoming banquet in his honor.
尼克松在为其到来而举办的欢迎宴会上也使用了筷子。
Please turn in your paper before leaving.
请在离开前将论文交上。
You are just in time.
你来得正是时候。