这类波可以像光波一样被反射、折射和偏振。
Reason to rule, but mercy to forgive: the first is law, the last prerogative.
一个测量可用的常识:手臂伸直两测指尖的距离就是你的身高。
I don’t care what people think of me. I care what I think of myself.
"Every story is a journey into the unknown."