善与恶之间永恒的斗争是文学中常见的主题。

The eternal ___struggle between good and evil is a common theme in literature.

公司董事会内部爆发了一场激烈的权力斗争。

A fierce power ___struggle erupted within the company's board of directors.

经过一番绝望的搏斗，她终于从鳄鱼的钳制中挣脱出来。

After a desperate ___struggle, she managed to free herself from the crocodile's grip.