B 开头单词
be unsure of 对……不确定
be unsure 没谱儿
be unstinting in one's praise 赞不绝口
be unsightly 有碍观瞻
be unsettled and short-tempered 心浮气燥
be unrefined 不登大雅之堂
be unparalleled for a time 独步一时
be unpalatable 令人难以接受 难吃
be unmoved 忘情
be unjustly accused 蒙受不白
be universally applicable 放之四海而皆准
be unintelligible 不知所云
be unfriendly to the environment [环境科学技术]对环境不利
be unfamiliar with 对……不了解 与……不熟悉
be unexpectedly moved or touched 忽有感触
be unequally distributed geographically [经济学]地理分配不均