每日英文2013.06.19

exit /ˈeksɪt/ n.出口 v.出去, 離去

exist /ɪɡˈzɪst/ v. 

1.存在

Gragons don't exist.

Note:

gragon /ˈdræɡən/ n.龍

2.生存; 生活

exist on: You can't exist on only 500 calories a day.

exist for: How can I exist for a week without seeing you?
                 You can't exist for long without water.