真正让人意想不到的是，他们在研究中发现了基本元素在各个不同加工阶段的形态，包括最简单基础的分子和最复杂的化合物。
What was unexpected, however, was that they saw all the materials in various stages of development, from their simplest forms to their most complex ones.
物理概念是组成物理知识的基本元素，是物理学的基础，也是高中物理教学的重点、难点。
The physical ideas are the basic element of physical knowledge, the base of physics and is the keystone and difficulty of physical teaching.
物理概念是组成物理知识的基本元素，是物理学的基础，也是高中物理教学的重点、难点。
The physical ideas are the basic element of physical knowledge, the base of physics and is the keystone and difficulty of physical teaching.
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