These organisms penetrate into snails, multiply, and develop into cercariae , the infective form for man.这些毛蚴进体螺体, 繁殖和发育对人类有传染性的尾蚴.The tears also contain a potent microbe - killer called lysozyme, which guards me from in...
I tried to imagine Dad's rough hands on this delicate instrument - and couldn't.我尽量想象爸爸那双粗手在摆弄这把精巧的小提琴 —— 可就是想象不出来.Rough hands plucked at my jacket.一双粗糙的手拽着我的上衣....
The two places, he insists, are as different as chalk and cheese.他坚持说那两个地方有天壤之别。Germany, however, insists on restrictions on the import of Polish coal.但是德国坚持对进口波兰煤炭加以限制.He insists any tax cut be matched dollar-for-dollar...
Barry resigned his directorship in December 1973.巴里于1973年12月辞去了他的董事之职。I felt the December air slither down my leg.我感觉到十二月的冷风沿着腿直往下钻.The ensuing December days brought to Clyde some pleasing and yet complicating and distur...
参加者按年龄分组。Participants were categorized according to age.今年的节日吸引的参加者之多创了纪录。This year's festival attracted a record turnout.这是一场全国性运动，参加者的政治信仰各不相同。It is a national movement and has within it people of all political pe...
他们试着在洞穴正下方的一块地上挖掘。They tried digging in a patch just below the cave.这正是洞穴探险者害怕的那种洪水。This is the type of flood dreaded by cavers.那些洞穴深约18公里。The caves extend for some 18 kilo-metres....