41103—i have never seen such a good art festival before. 4192 想问: 1—before这里什么词性什么用法41103—i have never seen such a good art festival before. 4192想问:1—before这里什么词性什么用法?

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41103—i have never seen such a good art festival before. 4192 想问: 1—before这里什么词性什么用法41103—i have never seen such a good art festival before. 4192想问:1—before这里什么词性什么用法?

41103—i have never seen such a good art festival before. 4192 想问: 1—before这里什么词性什么用法41103—i have never seen such a good art festival before. 4192想问:1—before这里什么词性什么用法?
41103—i have never seen such a good art festival before. 4192 想问: 1—before这里什么词性什么用法
41103—i have never seen such a good art festival before. 4192
想问:
1—before这里什么词性什么用法?

41103—i have never seen such a good art festival before. 4192 想问: 1—before这里什么词性什么用法41103—i have never seen such a good art festival before. 4192想问:1—before这里什么词性什么用法?
这里是一个副词:相当于 at an earlier time; in the past; already 以前; 过去; 已经:
如:
You should have told me so before.你早就应该告诉我.
It had been fine the day before.前一天天气很好(以过去某时(句中所述的时间)为准的前一天).
That had happened long before,(ie a long time earlier).那事老早就发生了.
I've seen that film before.我以前看过那部影片
【i have never seen such a good art festival before.】
【我以前从未见过如此精彩的艺术节.】

before 副词,在此之前