比如：我必须好好学习才能出国留学。
我必须好好学习，否则我会考不及格了。
从现在起，我必须好好学习，为实现梦想而努力。
From now on, I have to study hard to achieve my dream. I must learn as much as I can.
但是现在我必须好好学习，因为竞争太激烈了，我不努力，就会失败！
But I must study well now, because competed too has been intense, I not diligently, could be defeated!
我有我的母亲，我的父亲，我的哥哥sisther，他们都很爱我，我知道我的父母有如此多的蛇麻草和梦想，所以我必须好好学习。
I have my mother, my father, and my elder sisther, they love me very much, I know my parents have so much hops and dreams for me.
我必须要好好学习，因为我想当科学家。
所以，我必须学会观察生活，好好学习，打好基础。
Therefore, I must learn to observe life , study well , finish striking a basis.
今天，我告诉自己，必须好好学习英语，但是，我又玩了一天电脑，什么都没写出来。
Today, I told myself. Must learn English well. But, and I had a day play computer. What have never write it out.
所以，我现在必须好好学习，好好画画，虽然会很累，虽然会比别人辛苦，可是我觉得那是幸福的，因为，我在为自己的梦想而奋斗。
So, now I must study hard, and to draw, although will be very tired, although than others, but I think it is happy, because I am in the struggle for their dreams.
所以，我现在必须好好学习，好好画画，虽然会很累，虽然会比别人辛苦，可是我觉得那是幸福的，因为，我在为自己的梦想而奋斗。
So, now I must study hard, and to draw, although will be very tired, although than others, but I think it is happy, because I am in the struggle for their dreams.
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