Virus or bacteria infections of the alveoli result in pneumonia.病毒或细菌感染肺泡引起肺炎.Surfactant is the name given to the lipid secretions that lie in the alveoli.表面作用剂是指肺泡上的脂质分泌物.Particles deposited in the alveoli are immediate...
每当厨师挑剔我干的活儿时，我都非常沮丧。I was disappointed whenever the cook found fault with my work.每当金尼鼓起勇气提起这个话题时，他就说“不要问”。"Don't ask," he said, whenever Ginny ventured to raise the subject.每当她听不懂的时候，她总是会笑。Whenever she failed to co...
The city was walled and built upon a rock.这座城市建在岩石上，四周筑有城墙。The side alley was walled off from the back garden.侧巷和后花园之间用墙隔开了。Donkeys outnumber cars in this landscape of tiny stone-walled fields.在这片以石墙隔出巴掌大的农田的乡村，驴子比汽车还多。...
The boy had the presence of mind to turn off the gas.那男孩子镇定地关掉了煤气。He had the presence of mind to put his emergency oxygen tube in his mouth.他镇定自若地把应急输氧管放进了自己的嘴里。I had much presence of mind to bring myself off.我十分镇静地逃了出来....