Make it a rule never to give a child a book you would not read yourself.
我们需要找到方法使能源储存更高效和可持续。
词这种文体，精微美妙，能够表达诗所不能表达的内容。
The soul is a fire that darts its rays through all the senses; it is in this fire that existence consists.
学习数学的最好方法就是做数学。