缺乏多样性的森林就像只有一本书的图书馆。

The future of leather tanning lies in balancing tradition with technology.

Overfishing is a solvable problem, but it requires global commitment and local action.

Music taught me that persistence is victory.

Quality is not an end in itself; it is a means to an end.

有一个快乐的境况出现，但就有一个不快乐的境况相对立；有一处优美的风景出现，但就立即有一处不优美的风景相抵销。