Most have worked their way up from sales representatives，and they are veryproud of the role they played in the company's growth.

四級詞匯講解:

work one's way up是口語中經(jīng)常用到的搭配，意為“(從底層)往上爬”，是非常形象的表達(dá)。be proud of意為“為……而驕傲、自豪”。they played in the company's growth作role的定語從句，其中短語play a rolein意為“在…中發(fā)揮作用”。

英語四級考點歸納：

短語work up在口語中經(jīng)常出現(xiàn)，還可細(xì)化為如下搭配:

※ work sth. up意為“逐步發(fā)展;努力改進(jìn)”。如:

I can't work up any appetite.我怎么也無法增加食欲。

※ work sb./oneself up(into)意為“使激動;使發(fā)怒”。如:

What are they so worked up about?他們?yōu)榱耸裁茨敲醇影?

※ work sth. up into sth.意為“使完好，修整”。如:

You should work your notes up into an esay.你應(yīng)該把你的筆記整理成論文。