Language points:

survive vi. 幸存，生还 ,比…活得长 n. 幸存者 survivor eg. The custom has survived for thousands of years. vt. 从…中逃生, 经历…后继续存在 eg. Only two people survived the fire. Ex. 经过这次地震, 三分之二的人活了下来. Two-thirds of the people survived the earthquake.