我们知道

• We know a great deal about those fascinating prehistoric animals, the dinosaurs .
  关于那些十分引人注意的史前动物恐龙的情况，我们知道得不算少。
• First, we know that the planets all orbit close to the earth's orbital plane, the ecliptic .
  首先，我们知道所有行星的轨道都很靠近地球的轨道平面黄道面。
• We have seen what legions of admirers and friends barbicane's project had rallied round its author .
  我们知道，巴比康的计划替它的作者赢得了很多崇拜者和朋友。
• We know that cases which go to court are sometimes lost, and not always for just reasons .
  我们知道，官司打到法院去，有时会输掉，而且并不是都出于正当的原因。
• If we only knew how to harness that power, there is no end to the things it might do for us .
  只要我们知道如何驾驭这股力量，那么它能给我们做的事将是无止境的。
• We know that she had been deeply and incurably wounded, but the doctor had no means of knowing it .
  我们知道，她的心上留下了深深的，不可愈合的创伤，但医生无法了解这一点。
• We decided to run at the first chance because we knew it would be a death march in weather like this .
  我们决定一有机会就逃，因为我们知道在这种天气里，走下去是非死不可的。
• After all, we knew "our son" only through his letters and the one snapshot of him at age 14 .
  说来说去，关于“我们的儿子”，我们知道的，凭的只是他的来信和他十四岁时的一张小照。
• For example, we know that within a certain time period neutrons decay into protons and some other particles .
  试举一例：我们知道，中子在一定的时间里会衰变成质子和某些其他粒子。
• We know now that a hormone, gastrin, is produced by certain cells in the stomach when food enters the stomach .
  现在我们知道，食物进入胃时，胃的某些细胞产生一种激素，即促胃酸激素。