I'm Grandpa's daughter-in-law, but I feel like a Stewart.
我是爷爷的儿媳妇, 但我觉得我是Stewart家的一员。
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。