本集核心英语单词及例句：

1.brave (adj.)勇敢的
Then he did a very brave thing.
接着他干了一件非常勇敢的事。

2.cowardly (adj.)懦弱的
His cowardly behavior was laughed at by his colleagues.
他的懦弱的行为遭到了同事们的嘲笑。

3.timid (adj.)胆小的
He is too timid to venture upon an undertaking.
他太胆小，不敢从事任何事业.

4.afraid (adj.)害怕
Are you afraid of snakes?
你害怕蛇吗？

5.chicken-hearted (adj.)胆怯的
He is nothing but a chicken-hearted dastard
他只是一个胆怯的懦夫。