Nbac
abbr. normal butyl acetate 乙酸（正）丁酯; n-butyl-acetate 正乙酸丁酯; nonbile acid cholephils 非膽汁酸趨膽[性]; National Black Alcoholism Council 全國(guó)黑人酒精中毒委員會(huì)
??? 情景例句
Especially when it comes to speaking in English and fortunately or unfortunately.
特別是要用英文來(lái)演講，不知是幸運(yùn)還是不幸。
Please accept my apology.
請(qǐng)接受我的道歉。
No, there isn't. The nearest is about 4 kilometres away. You'd better catch a bus.
不，附近沒(méi)有。最近的離這大約4公里。你最好乘公共汽車(chē)去。