The science and engineering disciplines such as chemistry and biology you mentioned are all the dominant disciplines of Xiamen University, with strong strength, but sometimes it does not mean good employment. Like biology, it is difficult for biology majors in every university in China to find jobs.

Looking at other engineering majors, although the strength may not be very strong, the engineering is practical and the employment is relatively high, such as machinery, electromechanical, computer, architecture, civil engineering, aerospace, communication engineering, environmental engineering and other majors. When the unit comes to Xiamen University to recruit people, as long as the students nod, they basically sign it right away, unlike the liberal arts major, which has to be duplicitous.

As for which major to choose, you should combine your undergraduate major with your interest.