心理学的方法必须尽可能精确。

水产养殖的未来在于可持续发展和环境保护。

The best innovations are often the simplest solutions to the most persistent problems.

The best teacher is the one who suggests rather than dogmatizes, and inspires his listener with the wish to teach himself.

大树恨枝干上没有树叶，不要怨怪是太阳偏心故意晒偏。