Odd though it sounds, cosmicinflation is a scientifically plausible consequence of some respected ideas in elementary-particle physics.
宇宙膨胀说虽然听似奇特，但它是基本粒子物理学中一些公认的理论在科学上看来可信的推论。
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A proton is an elementaryparticle of matter that possesses a positive charge.
质子是带正电荷的物质的基本粒子。
《柯林斯英汉双解大词典》
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He further predicted that every elementaryparticle with a spin has its counterpart with the same mass but opposite electric charge, or that a particle has an antiparticle.