The best performance improvement is the transition from the nonworking state to the working state.
I would like to be remembered as someone who was able to help people realize their dreams.
所有有效广告的秘密不在于创造新的、巧妙的文字和图片，而在于将熟悉的文字和图片置于新的关系中。
The secondary rules are those that provide for the creation, alteration, and extinction of primary rules.