短语词组短语yearlong dance 持续一年的舞会yearlong stream 常年河流;常年不涸河流yearlong grazing 终年放牧yearlong range 全年放牧地cattle yearlong 牛年单位;牛的年单位Y yearlong 成年累月yearlong detail 常年的Yearlong to Semester 学年制到学期制yearlong range grazing 常年放牧 返回 yearlong