...gastric secretions.胃分泌物Surfactant is the name given to the lipid secretions that lie in the alveoli.表面作用剂是指肺泡上的脂质分泌物.Lysozyme is an enzyme found in egg white, tears, and other secretions.溶菌酶是存在于卵白 、 泪和其他分泌物中的一种酶.Use a...
The shop assistant has undercharged us.售货员向我们要价很低。He had the impression that they always undercharged him.他觉得他们总是少算了帐.He undercharged me two dollars for the wine.我买这瓶酒他少收了我两美元....
He was well-built, but too fleshy to be impressive.他肌肉发达，但是太胖了，没给人留下好印象。I struggled, but he was a tall man, well-built.我使劲挣扎，但他又高又壮。Mitchell is well built, of medium height, with a dark complexion.米切尔体格健壮，中等个头，肤色黝黑。...