Selachine
鲨白化素
🗣️ 情景例句
Where's the coffee?
咖啡在哪？
You cannot have two forenoons in the same day.
一日之中不可能有两个上午。
when H.M.S. Porcupine was put at the disposal of the Royal Society for several cruises,
皇家学会用英国"豪猪号舰艇进行了几次巡航后，