天花

So Chinese people started to vaccinate cowpox. By the end of seventeen of twenty century, the smallpox was eradicated all over the world.

从此中国人开始改种牛痘。20世纪70年代末，全世界终于消灭了天花。

The boy then caught cowpox. Forty-eight days later Jenner inserted smallpox matter into the boy.

于是这个男孩也得了牛痘。48天后，Jenner将含有天花病毒的物质注入这个男孩身上。

From the discovery that harmless cowpox gave protection against deadly smallpox came vaccination and the end of smallpox as a scourge in the Western world.

对人体没有害处的牛痘能够使人体免受天花的伤害。随着这一发现产生了预防接种，结束了天花带给西方世界的灾难。

So he experimented by making a scratch on the arms of healthy people, infecting them with cowpox, and though their arms became sore for a day or two, they soon healed and none of these people ever got smallpox.

所以他试着在健康的人胳膊上抓痕，使他们染上牛痘。虽然他们的胳膊会疼上一两天，但他们很快就愈合并且永远不会患天花。

In that year Edward Jenner, a British physician, believed that dairymaids who had caught cowpox, could not catch smallpox.

这年英国的一个内科医生Edward Jenner相信得了牛痘的乳牛场女工不会得天花。

Jenner discovered that people who worked with cattle, like milkmaids and cowmen, were often infected with a harmless disease called cowpox which they caught from the cattle; but these people never seemed to get smallpox.

瞻纳发现，同牛一起工作的人，象挤奶女工和牧场工人，经常从牛身上传染一种无害的疾病，叫做牛痘，但这些人似乎从不会患天花。

Empress British doctor the piano 纳 studies to use the method that the cowpox germ prevent°froms the smallpox on these grounds, developping the vast foreground to the prevention of the infectious disease for the immunology.

后英国医生琴纳据此研究出用牛痘菌预防天花的方法，为免疫学对传染病的预防开辟了广阔的前景。

I my job I spend a lot of time crawling around.

我的工作是每天花很多时间爬来爬去。

He spent a great part of the day and night in one of the cremation grounds, in meditation.

他每天花大量时间在火葬场上冥想。

For instance smallpox and metope are white, dado is cream-colored, the ground is the color of camel's hair or deep yellow.

比如天花和墙面为白色，墙裙为米色，地面为驼色或深黄色。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。