1 sentence

1. 他充满雄心，立志要在科学领域取得重大突破。

   tā chōng​mǎn xióng​xīn, lì​zhì yào zài kē​xué lǐng​yù qǔ​dé zhòng​dà tū​pò.

   He is full of ambition and determined to make a major breakthrough in science.

   Source: Dong Chinese Dictionary