371. He should be prepared to make sacrifices to study his chosen field in depth. He should have an ambition to make some meaningful contribution to man's knowledge.

英語四級譯文:
他應該準備好為深入研習自己選中的知識領域而做出犧牲。他應該有為人類知識做出一些有意義的貢獻的抱負。

四級詞匯講解:
be prepared to do sth.意為“愿意做某事”。如:
I'm not prepared to accept your conditions.我不愿意接受你的條件。

make sacrifices意為“做出犧牲”。如:
His parents made sacrifices so that he could have a good education.為了讓他接受良好的教育，他的父母做出了不少犧牲。

in depth意為“全面，深入，詳細”。如:
You should look at the report in depth.你應該仔細看看這份報告。

ambition意為“志向，野心，雄心”。如:
She is intelligent but suffers from a lack of ambition.她很聰明，但卻缺乏遠大志向。

make a contribution to此處意為“為……作貢獻”。如:
He made a positive contribution to the project. 他對項目做出了積極的貢獻。

英語四級考點歸納:
contribution除表示“貢獻”外，還有以下含義:

※ “捐款，捐資”。如:
They are asking for contributions to disaster relief.他們在為賑災募捐。

※ “定期繳款”。如:
You can increase your monthly contributions to the pension scheme.你可以增加每月養老金計劃的繳費金額。

※ “投送的稿件”。如:
This month's issue has contributions from several famous writers.這期月刊有幾位著名作家的稿件。

※ “捐助”。如:
They rely entirely on voluntary contribution.他們全靠自愿捐助。