耳机胶盖的英文：
ear cap

ear是什么意思：
n. 耳朵；耳状物；听觉；倾听；报头；穗
v. 结穗

Walls have ears
隔墙有耳

This is an ear scoop.
这是扣耳勺。

The belly has no ears
食欲不长耳

laugh (grin) from ear to ear
咧开嘴出声（不出声）笑

Have you ever observed that his ears are pierced for earrings?
你有没有注意到他的两只耳朵穿了戴耳环的孔？

cap是什么意思：
n. 帽子；盖；最高限度
v. 胜过；盖上；给牙齿上釉

This cap fits you better.
这顶帽子对你更合适。

He wore a starched cap.
他戴一顶浆得笔挺的帽子。

They cap when they pass the president.
他们经过院长面前时脱帽行礼。

Clouds capped the mountains.
云笼罩着山顶。

The mountains were capped with mist.
山顶笼罩着雾霭。