nearly,about,almost的区别

nearly 几乎,将近
almost 几乎,差一点儿就,差不多(与动词,副词,形容词以及名词连用时,可与nearly通用;与no,none,nothing,never等否定式连用时,不可与nearly通用,常可与hardly any或scarcely any通用)
about 比...稍多或稍少;在...的稍前或稍后
一般都是区分nearly和almost的用法,about的用法比较随意