英語短語：Know someone by sight 只是面熟，似曾相識

如果你 “know someone by sight”，意思是你 “看某人面熟，但可能對這個人還不夠了解，不知其名或沒說過話”。
 
例句
 
Do you see that person there? I know her by sight, but I can’t remember where I met her.
你看到那個人了嗎？我看她面熟，但就是想不起在哪里見過她。
 
When I went to the industry conference, I noticed a lot of people by sight. I must have met them at the same event last year.
我去參加行業(yè)大會時，很多人看著都眼熟。我一定是去年參加這個活動時見過他們。
 
I know him by sight, but I don’t know his name.
我只是看他面熟，但我不知道他叫什么。