人类与牲畜之间的联系是历史上最古老、最重要的伙伴关系之一。

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

The best designs come from understanding the problem deeply and then finding the simplest solution.

仇恨是一种诅咒，它不会影响被仇恨的人，只会毒害仇恨别人的那个人。把仇恨当作一种毒药吧。