爱因斯坦对核武器的诞生有很大贡献，但是，他发现核武器的危害很大，所以，

爱因斯坦对核武器的诞生有很大贡献，但是，他发现核武器的危害很大，所以，他开始致力于阻止使用核武器

結果 (英文) 1:

Einstein contribute to the emergence of nuclear weapons, but he is very found of nuclear weapons, so he began working to prevent the use of nuclear weapons

結果 (英文) 2:

Einstein has contributed much to the birth of nuclear weapons, however, he found a great hazard of nuclear weapons, so he began working to prevent the use of nuclear weapons

結果 (英文) 3:

Einstein made a great contribution to the birth of nuclear weapons, but he found a great harm to nuclear weapons, so he started to stop the use of nuclear weapons