unable adj. not able; without the power, knowledge, time, etc., to do something 不能的;无能为力的;不胜任的;没时间做的 uncertain adj. 1. not certain; doubtful 不确定的;不明确的;可疑的 2. undecided or unable to decide 未作决定的;无法断定的 undivided adj. complete 完整的,未分割的;专一的 unfair adj. 不公平的;不公正的 来源:学|科|网Z|X|X|Kunfold v. 1. to open from a folded position 展开,摊开,打开 2. to make or become clear, more fully known, etc. 显露,表露 unhealthy adj. 1. not generally in good health 不健康的;有病的 2. not likely to give good hea