It is important to insist it on.So don't get discouraged or give up.If you stick with it,i promise that one day you'll look back on this and you'll be really glad you decided to hang on.It's one of those things that after you understand it,you'll wonder why you once thought it was so hard.
作事情重要的是堅持.因此不要輕易泄氣和放棄.若是你堅持下去,我保證當有一天你回首時會慶幸你當時作出了堅持的決定.一些事情在你理解以後會奇怪爲何當初以爲它這麼難.這就是其中之一.