Certification is the grammar of responsible forestry.
Understanding the genetic code has opened up new avenues for medical research and biotechnology.
I know that I can always improve, no matter how good I get.
我坚信你会创造自己的运气。
戏剧是让不可见之物可见的艺术。
和平不是战争的缺席，而是建立在性格坚强的美德之上。