Quaked
v. 顫抖, （因害怕或寒冷而）發抖( quake的過去式和過去分詞 ); （地面）震動
??? 情景例句
It's a problem, isn't it?
這確實是個問題，不是嗎？
Thoroughly to teach another is the best way to learn for yourself.
教學相長。
Because the Moon has only an eightieth of the Earth's mass,
因為月球的重量只有地球的1/8，