ascertain
v. 查明，确定
第三人称单数 ascertains
现在分词 ascertaining
过去式 ascertained
过去分词 ascertained
例句
It can be difficult to ascertain the facts.
可能难以查明事实真相。
《牛津词典》
Through doing this, the teacher will be able to ascertain the extent to which the child understands what he is reading.
通过这样做，老师将能确定这个孩子对他正在读的内容的理解程度。
《柯林斯英汉双解大词典》
Cricket keeps an off-field umpire for boundary calls, and to ascertain whether batsmen are run out and if catches are real.
板球有一个场外的裁判来判定边界，并确定击球手是否出局，接球是否真实。
