for：
prep.對(duì)于;為了;(表示對(duì)象、用途等)給，對(duì)，供;以幫助;關(guān)于
conj.因?yàn)?由于
例句：
There was much discussion about the reasons for the failure.
就失敗的原因進(jìn)行了大量的討論。
We have a full order book for the coming year.
我們來(lái)年的訂貨簿已經(jīng)記滿了。
I didn't get a red cent for all my work.
我做了那么多工作，可什么也沒得到。
We're going to Germany for Christmas and New Year.
我們要去德國(guó)過(guò)圣誕和新年。
A good dictionary is indispensable for learning a foreign language.
一本好詞典是學(xué)習(xí)外語(yǔ)必備的。
The book will be invaluable for students in higher education.
這本書對(duì)于高校學(xué)生將有重大價(jià)值。
Respect for life is a cardinal principle of English law.
尊重生命是英國(guó)法律最重要的原則。