Passengers must show their tickets on demand.查票时乘客须出示车票.This check is payable on demand.这是一张见票即付的支票.The company's actuarial report is available on demand.该公司的精算报告可随时索取。...
Enzyme - linked immunosorbent assays ( ELISA ) were developed for lactoferrin determination of bovine colostrum.应用酶联 免疫 法测定初乳中乳铁蛋白的含量.Beestings: also beastings , The first milk secreted by a mammal, especially a cow, aft...
There were 2,250 policemen on duty in and around the stadium.在体育场内及周边有2,250名警察在值勤。Extra staff had been put on duty.编外人员已经就职。He's on duty twenty-four seven.他不分昼夜地天天上班。...
琼森医生有时候似乎有点懈怠。Dr. Jonsen seemed a little lackadaisical at times.本·琼森的仆人理查德·布罗姆在1641年写了《一伙快活人》。Richard Brome, an acolyte of Ben Jonson's, wrote "The Jovial Crew" in 1641.本琼森告诉我们莎士比亚从来无须订正手稿.Ben Jonson tells us that S...