English → Chinese
uncertain
/BrE ʌnˈsəːt(ə)n 
, AmE ˌənˈsərtn /
adjective
1 (unsure) 不确定的; (hesitant) 犹豫不决的;
to be uncertain of sth; 对某事没有把握;
to be uncertain about sth/doing sth; 对某事物／做某事拿不准;
to be uncertain (about or as to) what to do/whether to do sth; 不能确定该做什么／是否做某事;
in no uncertain terms 直截了当地
2 (not predictable) 难预料的 ‹outcome, fate, result›; (not known) 不确知的 ‹future, cause›;
an old man of uncertain age 年龄不详的老头;
a manuscript of uncertain origin 来历不明的手稿
3 (changeable) 易变的; (erratic) 无常的;
the weather is uncertain 天气变幻莫测;
his aim is uncertain 他的目标摇摆不定;
a man of uncertain moods/temper 喜怒无常／脾气难以捉摸的男人