episode54

1. scientist,科学家。

2. extinct,绝种的,灭绝的。

The passenger pigeon is extinct.
旅鸽已绝种。

3. to have something to do with…，和…有关。

4. behavior,行为。
He was on his best behavior.
他表现极好。

节目片段节选自CNR
剪切：蒋健棠
编辑：蒋健棠
主讲：蒋健棠

“欢迎转载这系列节目，但请注明来源为可可听力网-[蒋健棠教你听英语广播]”