英语的这个句子怎么理解?.orz

survive
KK: []
DJ: []
vt.
1. 在...之后仍然生存,从...中逃生
Only two passengers survived the air-crash.
这次飞机失事只有两名乘客幸免于死.
2. 比...活得长;丧失(配偶,亲人等)
She survived her husband by twenty years.
她丈夫去世后她又活了二十年.
vi.
1. 活下来,幸存;残留[(+on)]
Few survived after the flood.
洪水后极少有人生还.