as.cer.tain
v.tr.(及物动词)as.cer.tained,as.cer.tain.ing,as.cer.tains To discover with certainty, as through examination or experimentation.See Synonyms at discover 查明,弄清:由事实查明,如通过检查或试验参见 discoverArchaic To make certain, definite, and precise.【古语】 使…肯定,确定,和精确
来源:Middle English acertainen [to inform] 中古英语 acertainen [通知] from Old French acertener ascertain- 源自 古法语 acertener ascertain- a- [to] from Latin ad- * see ad- a- [到] 源自 拉丁语 ad- *参见 ad-certain [certain] * see certain certain [确定的] *参见 certain
【引伸】
as.certain.able
adj.(形容词)as.certain.ableness
n.(名词)as.certain.ably
adv.(副词)as.certain.ment
n.(名词)