Presbysphacelus
[医] 老年坏疽
🗣️ 情景例句
Good night, Dad.
晚安， 爸爸。
We're working fast to try and make up for lost time.
我们正加紧工作以争取补偿失去的时间。
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。