燕雀大约在12个星期大小的时候开始换羽毛。Finches start to moult at around twelve weeks of age.燕雀之志,成不了大志.A penny soul never came to twopence.燕雀大约在12个星期大小的时候开始换羽毛。Finches start to molt at around twelve weeks of age....
这一词使一大批生物界后起之秀兴趣倍增.This word added zest to a new group of biologists.杰克对生物界的现象感兴趣, 像毛虫变成蝴蝶.Jack is interested in biological phenomena, such as caterpillars turning into butterflies.我上述的例子是野外生物界的例外.My examples above a few...
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...