M. d. p.
[医] 右颏后位(胎儿)
🗣️ 情景例句
remember?
记得吗
Love makes the world go round.
爱能感动世界。
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。