It is a very rewarding exercise to work this out oneself.独自解决这个问题是一次受益匪浅的锻炼。Life for the successful doctor can be emotionally and financially rewarding.对于事业有成的医生来说，生活在精神和物质两方面都能令人满足。a challenging and rewarding career as ...
photoelectric element光电管Training simulator system for photoelectric collimator is designed for the manual operation of photoelectric collimator.光电瞄具模拟训练器是为解决光电瞄具的使用操作而设计的.Photoelectric spectrophotometers give better resu...
Pigs were butchered, hams were hung to dry from the ceiling.杀了猪，猪腿挂在天花板上风干。There are all sorts of animals, including bears, pigs, kangaroos, and penguins.有各种各样的动物，包括熊、猪、袋鼠和企鹅。Dr Binger keeps poultry, pigs and goats.班热博士饲...