by sight的用法和樣例：
例句
- I know him by sight but I can't remember where we met.
我覺得她很面熟，但記不起在什麼地方見過面。 - First, I stand at a busy corner, merely looking at people, trying by sight of them to understand something of their lives.
首先，我站在一個熱鬧的角落，僅僅是看著人們，試圖以審視他們來理解他們生活的某些東西。 - I know Mrs Hill by sight, but we've never met.
我見希爾夫人面熟，但並不相識。 - I have never met Mr. Reese; I simply know him by sight.
我從未見過里斯先生，我只是看他面熟。
辭彙搭配
- know someone by sight 認得某人,跟某人面熟...
