His letters, like his poetry, are life-enhancing and a delight.他的信跟他的诗一样，读来令生活更添滋味，可谓一大乐事。The drug increases the number of red cells in the blood, enhancing oxygen uptake by 10 percent.这种药增加了血液里的红细胞数量，从而将摄氧量提高了10%。Nanome...
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...