Hierarchy number
[计] 分层数, 层次数
🧩 词语组成解析
🗣️ 情景例句
I'd like a side order of onion rings, please.
我想再要一个洋葱圈。
And the problems that some of us have had in the past year.
和去年我们一些人遇到的问题。
it is now possible not only to locate a shoal but to tell if it is herring, cod, or other well-known fish, by the pattern of its echo.
不仅能够确定鱼群的位置，而且可以根据鱼群回声的特点分辨出是鲱鱼、鳕鱼，这是人们所熟悉的其他鱼。