1、一个地方的人口越多，其对水，交通和垃圾处理的需求就会越大。
The more people there are in a place, the greater the demand for enon of college or high school students the above discussion, the information I've collected over the past fefort, bicycles are not comparable to vehicles such as cars and trains.
25、儿童在能说或能听懂语言之前，很久就会通过面部表情和靠发出噪声来与人交流了。
Long before children can speak or understand a language, they communicate through facial expressions and by making noises.
26、家庭人口多好还是家庭人口少好是一个非常通俗的主题，不仅是城里人，而且农民都经常讨论这个问题。
Whether the family population is large or small is a very popular topic, which is often discussed not only by urban residents, but also by farmers.
27、考虑到这些严重的状况，我们比以往任何时候更需要像自行车这样的环保型交通工具。
Considering these serious conditions, we need more environmentally friendly vehicles like bicycles than ever before.
