@kastin83 @LorraineHirsch @JoustingJim @BallouxFrancois @paulkrugman I don't see where anyone claimed 5% better. The statement was range of effectiveness, which is true.
@kastin83@LorraineHirsch@JoustingJim@BallouxFrancois@paulkrugman我看不出有谁声称自己比他好5%。这句话的有效性范围很广，这是真的。