下面这两个副词均含"……以前"的含义： ago ：指从现在起往前推算一段时间，始终置于所修饰的词之后，与一般过去时连用。 before ：或指从过去某一时间起向前推算的若干时间的以前，通常与过去完成时连用；或泛指以前，并不具体指若干时间以前，可使用现在完成的或过去时；还可指从将来某一时间起的若干时间以前。
A hundred years ago coronary heart disease was virtually unknown in Europe and America.在100年前冠心病几乎不存在于欧洲和美洲。Cato , an influential Roman thinker, 000 years ago, praised its medical value.CatotheElder是两千年前一位古罗马很具影响力的思想家, 以...
Mechanization happened years ago on the farms of Islay.数年前，艾莱的农场就实现了机械化。Rationing had put an end to a surfeit of biscuits long ago.定量供应很久以前就结束了饼干过剩的状况。Their water was turned off weeks ago without explanation.他们的水在几周以前就毫无...
I'lltry to get on the flight down to Karachi tonight.我尽量赶上今晚去卡拉奇的航班。Her maternal grandfather was Mayor of Karachi.她的外公是卡拉奇市的市长。She reached Karachi on Monday evening, the journey having occupied three days and nine h...
Forms and prospectuses will be available at 53 bank branches.申请表和招股书可于五十三家银行分行索取.Galaxy Yintai fiscal dividend securities investment funds to update placement prospectuses.银河银泰理财分红证券投资基金更新招募说明书.AXA value of the silver - ...
a memento of our trip to Italy我们意大利之旅的纪念品The photos will be a permanent memento of your wedding.这些照片会成为你婚礼的永久纪念.My friend gave me his picture as a memento before going away.我的朋友在离别前给我一张照片留作纪念品....
Diquat is a non - selective contact herbicide and desiccant , developed by ICI Plant Protection Division ( now Agrochemicals ).敌草快,是英国卜内门化学公司 ( 现改名先正达化学公司 ) 开发的 非 选择性接触除草剂和干燥剂....
Antigen density on the tumor cell surface influences the cytotoxic sensitivity.瘤细胞表面的抗原密度影响细胞毒的敏感性.Others produce cytotoxic injury, and some characteristically produce the mixed pattern.其他的则造成细胞毒性损伤, 还有一些从特征上来看是混合型.The a...