Oceaneering
海洋工程
🗣️ 情景例句
He is still unable to express himself in English.
他仍然不能用英语表达自己的意思。
I didn't realize the time had passed so quickly.
我没有认识到时间这样快速过去了。
the varieties are infinite; but two classes may be roughly seen.
鸟的飞行方式千差万别，但大体上可分为两类。