Every bus arrives and leaves packed as fully as a sardine tin.每辆开来和开走的公共汽车都塞得像沙丁鱼罐头一样拥挤.Each sardine was hooked through both eyes.每一条沙丁鱼都是穿过眼睛挂在钩子上的.The old man unhooked the fish, rebaited the line with another sardine a...
Pseudomembranous colitis is caused by Clostridium difficile, and has become more common with increasing antibiotic use.伪膜性大肠炎是困难状杆菌所引发的, 随著抗生素使用增加,这个疾病也变的更加容易出现.Ulcertitive colitis is associated with an incidence of mult...