B 开头单词
be prepared 做好准备；准备好了；准备妥当
be preoccupied with 一心想着… 专注于…
be prejudiced against 对...有偏见
be pregnant with 充满 孕育
be pregnant 怀孕 怀胎
be predisposed to 本来爱好……，有……的倾向，易患……病
be praised for 因……而受到赞美
be practical and realistic 实事求是
be powered by 由……供电（powered是power的过去分词） 由……提供动力（powered是power的过去分词）
be postponed for some reason 因故改期
be possessed of 具有；拥有；占有
be positive about 确信 对……积极的
be positive 积极
be populated with 用…填充
be popular with sb 受某人欢迎
be popular with 为……所喜欢；受……欢迎