The tree, native to Asia, is incredibly resilient, with several surviving an atomic bomb blast in Hiroshima. Ginkgoes also stand up well to smog, road salt and pests.

银杏树原产于亚洲，复原能力惊人，广岛原爆后，有许多银杏树存活下来。银杏树也很经得住烟雾、铺路盐、害虫等的侵袭。

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He and other refugee scientists were worried that Germany was working to develop an atomic bomb.

VOA: special.2009.06.14

Uranium enrichment is the process used to make fuel for nuclear power plants, but when extended it can also produce fissile material for an atomic bomb.

VOA: standard.2009.11.28

Economic sanctions imposed after Islamabad exploded an atomic bomb still dog the economy.

CNN: Bogged Down By Endless Troubles

First of all, it's as if someone took that plan and dropped an atomic bomb simply to make it more difficult.

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At Los Alamos, a remote outpost in New Mexico, Oppenheimer gathered the finest minds in physics to develop and design an atomic bomb.

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