bitterrootsCOCA¹³⁵⁶⁷²BNC¹²⁶⁴¹⁶⁺⁴ 基本例句 n.苦根琉维草原型bitterroot的复数 Concentrating primarily on Wyoming and Montana, we would explore such legendary mountain ranges as the Big Horns, the Bitterroots and the Swan. 我们的重点是考察怀俄明和蒙大拿，同时去领略大霍恩、比特鲁特以及斯旺等充满传奇色彩的山脉和风光。 jukuu