正电子发射断层成像 ( PET ) 是一种结合单一分子放射示踪的成像技术.Positron emission tomography ( PET ) is an imaging technique that combines a radioactive tracer with a molecule....
一些小东西在帐篷四周的草丛里窸窸窣窣地动着。Small things stirred in the grass around the tent.别为这点小东西拼命砍价.Don't drive a hard bargain over such a little thing.可怜的小东西!A poor little thing [ creature ]!...
The child often disobeys his mother.这个孩子经常不听他妈妈的话.This process is never completed, but it disobeys the law of diminishing returns.这个过程是无止境的, 可是这违背了报酬递减律.Any sailor who disobeys will be punished with six strokes of the wh...