Probable reason, I know not how it is, but I have observed it.
I tend to like things that already exist.
The future of the petroleum industry lies in efficiency, cleanliness, and low carbon. We must find a balance between traditional and new energy sources.
我们的教学方法只有一个,就是必须维持孩子们的高度兴趣和强烈持续的注意力。