Protogene
优势基因
🗣️ 情景例句
Catching a fish is a lot more complicated than just throwing a worm in the water.
钓鱼可不是把鱼饵抛进水里那么简单。
It's a matter of life and death.
事关生死。
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。