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可可英語每日一句口語：
You have to do everything you can, you have to work your hardest, and if you do, if you stay positive, you have a shot at a silver lining. 你需要盡你所能，最大限度地去努力，只要你能這么做，只要你保持樂觀，你就能看見烏云背后的幸福線。
【知識點講解】
have to do 必須，不得不做
例句：I have to work tomorrow.我明天上班。
