Understanding the Ultimate Structure of Matters and Some Scientific Doubts of Nature through Simple Hypotheses

There are numerous unanswered scientific doubts/phenomena in Nature which still perplex scientific researchers currently. To solve these puzzles, unveiling the ultimate structure of matters, which make up the Nature world, is essential. Here four hypotheses, namely the fundamental matter component (basic particle) and its property, construction process of the basic particles into other particles/matters, repulsion of particles of the same type, and direct relationship between matter and energy, are proposed. These simple hypotheses can well explain some natural phenomena, such as the existence of huge atom energy and various particles/matters of different properties, and conversion balance between matters and energy. Due to the existence of diverse infinite fine particles and repulsion of particles of the same types, matters and the Nature world are submerged in a sea of particles and there is not a real vacuum space (without any particle) in the Nature world. This in turn reveals Thermal Laws, the component of dark energy/matter, as well as a minimum temperature of ~3K that exists in the deep Universe. The suggested relationships between particles and/or matters also shed light on the mechanisms of interaction forces of same or different polarity particles, and intermedia of gravitational, electrical and magnetic fields.