第31句：

Frustrated by these restrictions,Subra left her job in 1981,created her own company,and has devoted the past two decades to helping people fight back against giant industrial polluters.

六級詞匯講解:
frustrate意為“使沮喪，使挫敗”。devote...to doing sth.意為“把……用于做某事，致力于做某事”。fight back against意為“奮力抵抗，還擊”，其后的賓語即為抵抗的對象，同時也往往是聽音的重點。也可以只說fight back，表示“還擊，抵抗;抑制”。如:
1) Victims of discrimination often don't have the power to f ght back。
歧視現象的受害者通常無力還擊。
2 ) She fought back her disgust.
她強忍住心里的厭惡。
polluter意為“污染源，污染者”。

六級考點歸納:
與fight有關的常見短語還有:
1. fight sb.lsth. off意為“擊退，竭力擺脫”。如:
They had to fight off the crowds to get out of the theater。
他們得竭力擺脫人群，才能走出劇院。
I'm fighting off a cold.
我正在治療感冒。

2. fight sth. out意為“通過爭辯(爭斗)解決”。如:
The conflict is still being fought out.
這一矛盾仍在爭辮的過程中。