（Billy is humming loudly）

Jennifer: Shut up...Billy...BILLY!
Billy: [Takes off his earphones] What!
Jennifer: Wow! What's that?
Billy: It's my new radio earphone.
Jennifer: It's so small that I didn't notice it.
Billy: What were you screaming at me for?

hum (v.) 　
嗡嗡叫

earphone (n.) 　
耳塞式耳機。「頭戴式耳機」是headphones。一副耳機是說成a pair of earphones/a pair of headphones

notice (v.) 　
注意到
A: Didn't Sam seem a little strange today?
山姆今天看起來是不是怪怪的？
B: I didn't notice.
我沒注意到。

scream (v.) 　
尖叫
A: Do you want to see a horror movie with me?
你要跟我去看恐怖片嗎？
B: Only if you promise not to scream!
除非你保證不會尖叫！

把廣播戴在耳邊－耳機收音機

(比利在哼啊哼的)

珍妮花：閉嘴……比利……比利！ 比 利：（脫掉了耳機）什么啦！
珍妮花：哇！那是啥啊？
比 利：這是我新的耳機收音機。
珍妮花：這么小一個，我都沒注意到。
比 利：你剛才對著我喊什么啊？