# ascertain ##### 词义 - 英：/ˌæsəˈteɪn/； 美：/ˌæsərˈteɪn/ - #词性/vt 查明；弄清 ##### 例句 - It can be difficult to ascertain the facts . - 可能难以查明事实真相。 - Tests were conducted to ascertain whether pollution levels have dropped . - 做测试以查明污染程度是否下降。 - It must be ascertained if the land is still owned by the government . - 必须确定这块土地是否仍属于政府所有。 ##### 形态 - #形态/word_third ascertains - #形态/word_ing ascertaining - #形态/word_done ascertained - #形态/word_past ascertained