🗣️ 情景例句
Why does it have to be one or the other?
为什么非得有这个就没有那个？
Would you please pass the salt?
请您递给我盐。
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。