例句：

　　He determined that he would become an assistant scientist.

　　他決心要當(dāng)一名科學(xué)家的助理。

　　A scientist must be objective.

　　科學(xué)家必須客觀。

　　The scientist argued that his discovery had changed the course of history.

　　這個(gè)科學(xué)家舉出理由證明他的發(fā)現(xiàn)已使歷史改觀。

　　She has become a famous scientist.

　　她成為著名科學(xué)家。

　　In the middle of his tests, the scientist burst on the truth.

　　在實(shí)驗(yàn)過程中，那個(gè)科學(xué)家突然發(fā)現(xiàn)了真相。