恐龙灭绝是因为它们没有太空计划。如果我们因为没有太空计划而灭绝,那是我们活该!
The dinosaurs became extinct because they didn't have a space program. And if we become extinct because we don't have a space program, it'll serve us right!
解释:观察与他交游的人,就知道他的品行好坏。