B 开头单词
be unsure of 對……不確定
be unsure 沒譜兒
be unstinting in one's praise 贊不絕口
be unsightly 有礙觀瞻
be unsettled and short-tempered 心浮氣燥
be unrefined 不登大雅之堂
be unparalleled for a time 獨步一時
be unpalatable 令人難以接受 難喫
be unmoved 忘情
be unjustly accused 矇受不白
be universally applicable 放之四海而皆準
be unintelligible 不知所雲
be unfriendly to the environment [環境科學技術]對環境不利
be unfamiliar with 對……不了解 與……不熟悉
be unexpectedly moved or touched 忽有感觸
be unequally distributed geographically [經濟學]地理分配不均