Contamiaative transmission
[医] 沾污传播
🧩 词语组成解析
🗣️ 情景例句
What's the matter?
发生了什么事？
Man will conquer nature.
人定胜天。
that a series of deep soundings was obtained in the Atlantic and the first samples were collected by dredging the bottom.
才在大西洋测得一个个海水深度，同时通过挖掘海底，取得了研究海底的首批样品。