The boundaries which divide Life from Death are at best shadowy and vague. Who shall say where the one ends, and where the other begins?

The personality of the teacher is the cornerstone of education.

用户的需求是我们前进的动力。

当天赋不努力时，努力会战胜天赋。

Words are the only bullets some of us have.

诗人必须净化部落的语言。

问题陈述得好，问题就解决了一半。