proponent

Dr. Smith is a leading proponent of using solar energy to power rural villages.

(Chinese) 史密斯博士是利用太阳能为农村村庄供电的主要倡导者。

Proponents of the new tax law argue that it will stimulate long-term economic growth.

(Chinese) 新税法的支持者辩称，它将刺激长期经济增长。