New Words：

devote [di'vəut] vt. 致力于；奉献给；献(身)；投入(时间、精力等)；
physicist ['fizisist] n. 物理学家

Sample Sentences：

He devoted himself entirely to music.
He wanted to be a physicist and devote himself to research.
He started to study physics and decided to devote his whole life to the science.

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