1）before (conj.) 在….之前 拓展：it took \was long before …. 过了多久才….. it won’t be long before… 不久就….. it will be long before … 要过多久才….. it wasn’t long before… 不久就……. eg. it will be two years before he comes back. 2) 修饰可数名词：a great\good many, a number of, many, many a=more than one(单n.+单v.) 修饰不可数名词：much, a great deal of, a large amount of(单v.),
