blockhead

Don't be such a blockhead; read the instructions before you start.

用法提示：blockhead 在本句为名词，意为“傻瓜”，用在祈使句中作表语。

He felt like a blockhead when he realized he had locked his keys inside the car.

用法提示：blockhead 作名词，表示“傻瓜”，在句中作介词 like 的宾语。

Only a blockhead would believe that trick.

用法提示：blockhead 为本句名词主语，指“傻瓜”这类人。