Healthy, skin, mucous membranes, and cilia are natural barriers to many viruses.健康的皮肤, 粘膜和纤毛是许多病毒的天然屏障.Seromucous glands contain both mucous and serous cells.浆粘液腺既含有粘液性细胞,又含有浆液性细胞.Latin word originally means a mucous exc...
Mucous membranes or breaks in the skin were likely alternative entryways into the body.粘膜或者皮肤上的破裂处都可能成为病毒入侵的通道.However, eversion of the cervical mucous good elasticity, the more tidy edge.但外翻的宫颈粘膜弹性好, 边缘较整齐.Latin word or...
Dauntless in spirit,they became steeled through hardship.他们不屈不挠,在艰苦的生活中锻炼得更加坚强了。Many people are suffering economic hardship...很多人正处于经济困难之中。Consider how much more frugal the poor are than we, how much better they forebear...
His work as a consul-tant consisted in advising foreign companies on the siting of new factories.作为一名顾问，他的工作是为外国公司在新厂选址问题上提供建议。Proper siting provides one means of protection.适当选择园址,也是一种提供保护的措施.This recognition will provi...