New Words：

expert [ˈekˌspɜrt] n. 专家；行家；能手
adventurous [əd'ventʃərəs] adj. 爱冒险的；大胆的；惊险的；有冒险精神的

Sample Sentences：

She is an expert in training animals.
To her expert eye, the painting was terrible.

John is an adventurous man, unafraid of risks.
I think I'll try the snails for lunch—I'm feeling adventurous today.

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