The discovery of the cowpox vaccination let the danger of vaccination more less, and cost lest.牛痘术的发明使种痘的危险性更小, 花费也降到最低,故而很快在全世界推广开来.In nineteen century, Enligh doctor Pearson came to Macao to spread the cowpox vaccinati...
She was dancing while someone substituted at the piano.她在跳舞,别人代她弹钢琴.Glass blocks are sometimes substituted for ordinary bricks.有时,玻璃砖被用来代替普通的砖.He substituted for the worker who was ill.他顶患病的工人干活....
...their plans to emerge from bankruptcy by February of next year.他们计划于明年2月之前摆脱破产困境In the warmth of spring, they emerge en masse.温暖的春天到来后, 它们又会出现在大地上.The favoured candidate will probably emerge after private discussions....
二次钙矾石的形成量受养护条件的影响.The amount of secondly ettringite is affected by the curing condition.毛矾石中含有天然形成的硫酸铝,可直接用水浸取.Aluminum sulfate formed naturally in alunogen could be extracted directly with water.探讨了补偿收缩混凝土中延迟钙 矾石 生成的可能性...
His defeat was quite a comedown for all of us.他的失败令我们全体感到失望.She find it a comedown to listen to her former subordinate.她觉得要听她以前部下的指挥很降格.The clouds comedown so suddenly we had no warning.突然天气乌云密布,此前毫无征兆....