true：n.真实；准确；
adj.确实的；如实的；
false：adj.错误的；不正确的；
Our results should be a good approximation to the true state of affairs.我们的结果应该和实际情况相当接近。
He was a true friend, in every sense of the word.无论从哪个角度讲，他都是个真正的朋友。
Indicate whether the following statements are true or false.标出下列说法是对还是错。
His actions were based on a false assumption.他的行为基于错误的设想。