Pentamethoxyl
五甲氧基
🗣️ 情景例句
He has the reputation of being bright.
他以头脑好而闻名。
Would you care to take a seat while I make out a receipt?
请坐一会儿好吗？我给您开个收据。
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。