New Words：

undiscovered ['ʌndis'kʌvəd] adj. 未被发现的
discovery [dis'kʌvəri] n. 发现；发觉

Sample Sentences：

New scientific discoveries are being made everyday.
I spent most of my time searching for undiscovered treasures.
The drug is not a new discovery ─ it's been known about for years.
The discovery of a child's body in the river has shocked the village.

scientific [.saiən'tifik] adj. 科学的

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