唯一真正属于你的是你的时间。

技术是推动行业进步的核心，我们必须持续投入研发。

Certification is the grammar of responsible forestry.

To understand the meaning of a sentence， we must consider the speaker's intention and the context of the utterance.

信仰是生命的意义，这种感觉使人不毁灭自己，而是继续活下去。