"know by sight" in Chinese (Simplified)

面熟 (但不熟悉名字)

Definition

能认出某人或某物的外貌，但不了解对方的名字或其他信息。

多用于口语或书面中性语境，指只靠外貌认得，但没有深入了解或私人关系。常用来描述经常见面但不认识名字的人。

I know her by sight, but we've never spoken.

我只**见过她**，但我们从没说过话。

Do you know him by sight?

你**见过他**吗？

Many people in town only know me by sight.

镇上的很多人只**见过我**而已。

I think I know him by sight, but I can't remember where from.

我好像**见过他**，但想不起来是在哪里。

We all know each other by sight from seeing everyone at the market.

大家在市场经常见面，所以都**算是面熟**。

If you only know someone by sight, it's hard to ask for their help.

如果你只是**见过某人**，很难让他们帮忙。