要养活世界，我们必须先了解它。

If you lose or forget to bring a cable，adapter or charger，check with your hotel. Most hotels now have a drawer full of cables，adapters and chargers others have left behind，and probably have the one you are missing. You can often claim it after borrowing it.

Challenges are what make life interesting; overcoming them is what makes life meaningful.

语言是暴力，而我是它的受害者。