ascertain

• The first ascertained appearance of the aryan family was in connection with the domestic animals .
  雅利安族最初呈现的明确形象是与饲养家畜分不开的。
• The rim of the plugs is usually not exposed and the enveloping material cannot be ascertained .
  岩栓的边缘通常是不露出的，因而不能确定其包裹的物质是什么。
• I ascertained where they were to be found and, without any preliminaries, went and introduced myself .
  我打听清楚可以在哪里找到她们后，没有通知她们便去了。
• The lawyer ascertained that a policeman had indeed dealt roughly with foreigners on several occasions .
  这位律师查明了那儿的一个警察确实多次对待外侨行为粗暴。
• If they are grouped into larger units one can ascertain what group an unknown plant belongs to .
  如果把它们归类成较大的单位，那么就可以确知某种未知植物属于何类群。
• Then she proceeded to ascertain the facts, in order that her own conduct might be regulated by her knowledge of circumstances .
  于是她开始打听实际情况，以使决定如何行事。
• I have taken some pains to ascertain the degree of fertility of some of the complex crosses of rhodoendrons .
  我曾费相当力量，来探究杜娟花属的若干复杂杂交的能育性的程度。
• Hutter and hurry would make a fresh attempt on this camp should they awake and ascertain its position .
  如果哈特和赫里醒来发现这一情况的话，他们就可能会再次偷袭印第安人的营地。
• The letter was written and sent away with a privacy which eluded all her watchfulness to ascertain the fact .
  写信和寄信都会在私下里进行，以避免埃莉诺注意，免得让她把事实都查得一清二楚。