rodeo 竞技 merge 融合 influx 流入,汇集 contribute 贡献 intermingle 混合 terrain 地形 barbed 带刺的 overgraze 过度放牧 forage 饲料 Key Words in History 历史关键词 1.Lariat 套索 Lariat; from the Spanish “la riata,” meaning “the rope,” sometimes called a lasso, especially in the East, or ...