Sheather
n. sheathe的变形
🗣️ 情景例句
Thank you. It's delicious.
谢谢，味道很好。
Do you have any comments to make on the recent developments.
你对最近事态的发展有什么评论吗？
So it is a comparatively simple step from locating the sea bottom to locating a shoal of fish.
从测定海深到测定鱼群，这一进展比较容易。