noun 下载 🔗分享 qu Mai, 冰草 Couch grass, a species of persistent grass, Elymus repens, usually considered a weed. Examples : "The lawn was infested with couch grass, making it difficult to mow. " 草坪上到处都是冰草 (qu Mai), 很难修剪。 plant agriculture nature biology environment essential 与AI对话词汇游戏阅读练习