常年 chánɡnián A. adverb perennially ▸ 常年不化的积雪 constant snow ▸ 他常年在野外工作。 He works in the wild year in, year out. B. noun average year ▸ 常年亩产量 per mu yield for an average year ▸ 该地区常年雨量为 600-800毫米。 In this area the rainfall averages 600-800 millimetres a year. |