Ear-drum
[醫]（耳）鼓膜, 鼓室
?? 牛津釋義
ear-drum
(also drum) n thin membrane in the inner part of the ear which vibrates when sound waves strike it 鼓膜. =>illus 見插圖.
?? 詞語組成解析
ear
[i?]
n. 耳朵;聽覺，聽力;耳狀物;穗;
vi. 抽穗;（美俚）聽見;
drum
[dr?m]
n. 鼓;鼓狀物;鼓聲;石首魚;
vt. 擊鼓;連打;反復講;鼓吹;
vi. 擊鼓;連打;拍翅;
??? 情景例句
I'd like to borrow some money from you.
我想向你借點錢。
In college I majored in philosophy, What was your major?
大學時我主修哲學，你主修什么呢？
Tim is an engineer.He is working for a big firm and he has already visited a great number of different places in Australia.
蒂姆是個工程師，正在一家大公司工作，并且已經去過澳大利亞的不少地方了。