The interplay between syntax and semantics is central to the study of formal languages.
Be prepared: When you are 90% done any large project (a house， a film， an event， an app) the rest of the myriad details will take a second 90% to complete.
消费者的选择推动行业变革，要大力教育他们。
The key to credible causal inference is not just the method, but how well the method fits the question at hand.
