正文

VOA慢速英语:Knife Cuts on Mastodon Bone Reveal Earlier Humans

2016-05-30来源:VOA

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词汇讲解：

1. scientific adj.科学的; 有系统的; 应用科学的
例句：He is engaged in scientific pursuit.
他从事科学研究。

2. typical adj.典型的; 特有的或特别的
例句：Is this behaviour typical of the male sex?
这种行为是雄性特有的吗?

3. evidence n.证据; 迹象; 证词
例句：I'll confront him with the evidence.
我将拿证据和他当面对质。

4. extinct adj.灭绝的; 绝种的; 消逝的
例句：The volcano is extinct.
这座火山是座死火山。

5. discovery n.发现，发觉
例句：The discovery is due to Newton.
该发现应归功于牛顿。