日常生活中，我們肯定有過這樣的經歷，就是對於某些人只見過面，但沒有打過交道，再見面時能認出來，這在英語中該如何表達呢？know by sight 就很合適！今天我們一起通過幾個例句來學習一下這個詞組的用法。
例句1：I know him by sight but have never spoken to him.
我和他只是面熟，但從沒有和他說過話。
例句2：I have never met our new neighbors; I simply know them by sight.
我從未接觸過我們的新鄰居，只見過面。
例句3：I know that girl by sight; she sometimes reads the news on television.
我看那女孩面熟，她有時在電視上播新聞。
例句4：I know the man you are describing by sight, but I don't know his name.
你說的那個人我見過，但是我不知道他的名字。
例句5：To be honest I know you by sight.
說實話我看你很面熟。
例句6：I know Mrs. Hill by sight, but we've never met.
我見希爾夫人面熟，但並未打過交道。
例句7：Every morning I take the 8:30 bus to go to work. I know by sight several people who also take that bus at that time.
我每天早上八點半坐公車上班。那個時間乘那路公交車的幾個人我都面熟了。