Proper infection dosage and routes were selected to make the chickens artificially infect avian colibacillosis successfully.选择适宜的攻毒剂量和攻毒途径,诱发淮南麻黄鸡大肠杆菌病.At least one avian disease pathogen has been found.已经发现至少有一种禽病的病原体.B...
The lifeboat capsized, throwing the occupants into the water.救生艇倾覆，艇里的人被掀入水中。Forty-eight people have drowned after their boat capsized during a storm.他们的船在暴风雨中倾覆后有48人溺亡。Her own boat capsized after she attempted a rescue....
I moved away from the shack and picked my way among the rubble.我离开木屋，小心地走在瓦砾间。He picked up his suitcase and climbed the stairs.他拎起手提箱,爬上了楼梯.The snake picked up its head and stuck out its tongue which gave everyone a frig...
让他呆在中间是不是有什么目的？Is there some design in having him in the middle?一端为蓝色, 一端为红色, 这两种颜色在中间混成一色.One end is blue, one end is red, and the colors merge in the middle.隧道两端在中间相接时，仅有几英寸的误差。When the two ends of the tunnel met in th...