He fell asleep as soon as he touched the pillow.他脑袋一碰枕头就睡着了。
She was found asleep on a pillow of leaves.有人看见她枕着树叶睡着了。

pillow还可用作动词,基本意思是“枕在…上；作为…的枕头”。例如：
He pillowed his head on a pile of books. 他枕在一堆书上。

［词源］＜拉丁语pulvinus(枕头)