Ionium
n. 锾(钍同位素)\\n[医] 锾(第90号元素钍的放射性同位素)
🗣️ 情景例句
He is a man of ability.
他是个很能干的人。
I meet the boy whose aunt is a stewardess.
我遇到那个男孩的姑妈是空中小姐。
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。