Lautarite
碘钙石
🗣️ 情景例句
Hail to the conquering heroes,
向进取的英雄们致敬，
It took him a long time to make up his mind.
下决心花了他很长时间。
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。