我爱吃土豆儿
since2010.如果是用在句子中,上面足够可以.如果是单独说的,可以强调下2010表示的是时间:sincetheyear2010或者fromtheyear2010on./fromthisyearon.前面两个一般用于过去时,后面可以用在现在时哈.
三石太保
从前 [cóng qián]previously formerly关联词条:beforetime ci-devant in days gone by in the old days long since once upon a time whilom aforetime when on a time upon a time ages ago once langsyne long ago in olden days
半调子810
used to do sth 过去常常做某事 the other day 前几天 past 过去 in the past few years 前几年 ……ago ……以前 long time ago 很久以前 beforetime 以前once upon a time 从前