Despite their bitter screen rivalry, off-stage they are close friends.虽然他们在银幕上是誓不两立的对手，在现实生活中却是至交。a fierce rivalry for world supremacy夺取世界霸权的激烈竞争The quarrel originated in rivalry between the two families.这次争吵是两家不和引起的....
before的近义词有：ago, before,before, in front of, in the front of。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。下面这些前置词(...
Application of the cis - trans test defines the genetic unit of function, the cistron.顺? 反 测验可以用来确定遗传的功能单位――顺反子.Rockwell Automation defines sustainable production as cleaner, safer more energy - efficient operations.罗克韦尔...