Boiler drum
[機] 汽鍋鼓, 鍋身
?? 詞語組成解析
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
Quality is more important that quantity.
質量比數量更重要。
Which one do you prefer?
你比較喜歡哪一個？
I heard some one laughing.
我聽見有人在笑。