i have been here many times before
我以前来过这里很多次了
以上为机器翻译结果，长、整句建议使用 人工翻译 。
I have been here many times before.
我知道很久以前自己就来过。
youdao
I've been to China many times before, but I have never been here.
我以前多次去过中国，但我从没有来过这里。
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