Helicobacter pylori is a spiral Gram's negative bacterium, living in microaerophilic environment.幽门杆菌是一只革兰氏阴性螺旋菌, 生活在微需氧的环境下.Excuse me the following bacterium of screw of which formulary and eradicative pylorus is b...
She took a sip of water to moisten her dry throat.她抿了一口水，润一下发干的喉咙。Katherine took another sip from her glass to calm herself.凯瑟琳又抿了一口杯中的酒，竭力使自己镇静下来。I tried to sip the tea but it was scalding.我想抿一口茶，可是太烫了。...
"Surely there's something we can do?" interjected Palin.“我们一定可以做点儿什么吧？”佩林突然插话道。" What's all this? " the district chief interjected.区长道: “ 干什么?After a moment's break , Mel interjected.在短暂的沉默之后, 梅尔插了进来....