Bring a water bottle with a built-in filter to fill up at a drinking fountain after going through security. It saves money and keeps you hydrated and healthy.

• 携带一支带有内置过滤器的水瓶，你可以在通过安检之后在饮用水龙头处灌满它。这样既省钱又可以让你随时补充水分并且很健康。