kuò sàn
to spread
to proliferate
to diffuse
spread
proliferation
diffusion
bù kuò sàn hé wǔ qì tiáo yuē
Nuclear Non-Proliferation Treaty
Bù Kuò sàn Hé wǔ qì Tiáo yuē
Treaty on the Non-Proliferation of Nuclear Weapons
kuò sàn zhōu zhī
to let everyone know
spread the word!