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vt.确定；查明；探知
1、appertain───v.属于；和……有关；适合，适用
2、uncertain───adj.无把握的；多变的；不确定的；信心不足的；靠不住的
3、certain───adj.某一；必然的；确信；无疑的；有把握的；pron.某些；某几个；n.(Certain)人名；(葡)塞尔塔因；(法)塞尔坦
4、to ascertain───确定
5、ascertains───vt.确定；查明；探知
6、ascertainer───确定人
7、appertains───v.属于；和……有关；适合，适用
8、ascertained───v.确定（ascertain的过去式）；查明
9、ascertaining───vt.确定；查明；探知
1、They had to formally ascertain their authority again and install among the general public a respect for formalism and intellectualism.───他们必须要再次正式确立自己的权威，让普罗大众尊重XingShiZhuYi和知性主义。
2、We conducted our own, entirely unscientific, survey to ascertain just how much chocolate Nobel laureates ate.───我们开展了完全没有科学依据的调查，来探知诺贝尔奖获得者们的巧克力消费量。
3、It then tries to ascertain whether the writer is drunk by asking five mathematical questions that have to be answered in a limited time.───为了确定邮件发送者是否喝醉了，程序会给出5道数学题，发送者必须在限定时间内做出回答。
4、The detective was trying to ascertain exactly who was at the party.───这个侦探试图查明都有谁参加了聚会。
5、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。
6、It can be difficult to ascertain the facts.───可能难以查明事实真相。
7、But it must also be democratic, based on an independent auditing of debt to ascertain how much might be illegitimate.───同时它又必须是民主的，在对债务进行DuLi审计的基础上，确定其中哪些是不合规则的。
8、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。
9、The school that my daughter attends is trying to decide whether or not to ascertain books, which some parents think are inappropriate.───我女儿所在的学校正试图决定是否禁止一些书刊，然而一些家长认为这样做不合适。