He wiped away the blood with a paper napkin.他用纸巾将血迹擦去。I'm a blood donor; I can't risk any contagion.我是献血者，我不能冒任何接触传染的危险。The victim suffered a dreadful injury and lost a lot of blood.受害者受了重伤，大量失血。...
Exercise dilates blood vessels on the surface of the brain.运动会使大脑表层的血管扩张。Standard measurements of blood pressure are an important but crude way of assessing the risk of heart disease or strokes...标准的血压测量是评估患心脏病或中风几率的一个重要...
His house was the only settled home I had as a child.他的房子是我儿时唯一固定的家。The crowd in Robinson's Coffee-House was thinning, but only by degrees.鲁宾逊咖啡屋里的人正在变少，但也只是渐少而已。They have only a vague idea of the amount of water av...
铁轨跨过这条河直达矿井口。Across the river the railway track ran up to the pithead.几架马车仍然在破落的矿村中曲折行进。A few horse-drawn carts still trundle through the dilapidated mining villages.紧密团结的矿业界a tight-knit mining community...
设计图也可以从纸上扫描进电脑。Designs can also be scanned in from paper.设计图上所有的机器部件都应互相配合.All the machine parts on a blueprint must answer each other.在设计图上，体育场呈椭圆形。The stadium is elliptical in plan....