When the door of happiness closes,another opens,but often times we look so long at the closed door that we don’t see the one which has been opened for us.当一扇幸福之门关闭时，另一扇便会开启。可多数时候，我们却因为过久地凝望那扇紧闭的门，而忽略了为我们新敞开的那扇门。