科学的美丽在于它通过观察和实验来解释自然世界的能力。

Purchase the most recent tourist guidebook to your home town or region. You’ll learn a lot by playing the tourist once a year.

The future of the textile industry lies in sustainability and innovation.

不了解敌情，不可以行军打仗，不熟悉洋人的情况，不可以远谋。