短语词组短語yearlong dance 持續一年的舞會yearlong stream 常年河流;常年不涸河流yearlong grazing 終年放牧yearlong range 全年放牧地cattle yearlong 牛年單位;牛的年單位Y yearlong 成年累月yearlong detail 常年的Yearlong to Semester 學年制到學期制yearlong range grazing 常年放牧 返回 yearlong