adj.整整一年的，持续一年的

yearlong range → 全年放牧地
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 to Semester → 学年制到学期制
cattle yearlong → 牛年单位；牛的年单位
Y yearlong → 成年累月
yearlong detail → 常年的
tour yearlong ticket → 旅游年票

【Adjective】

1. lasting through a year;
"attending yearlong courses"