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I refused to wear headphones because they can perforate your eardrums.我不愿戴耳機(jī)，因?yàn)樗赡軙?huì)使鼓膜穿孔。My eardrums are almost pierced.我的鼓膜差點(diǎn)震破了.The passengers swallow to relieve the pressure on their eardrums.乘客們張嘴做吞咽動(dòng)作,以減輕耳鼓所承受的壓力....

eardrums的音標(biāo)：...

n.鼓膜，耳膜( eardrum的名詞復(fù)數(shù) )...