已知圆的圆心为抛物线的焦点，且与直线相切，则该圆的方程为 ．
Miss White often has us （tell） interesting stories in her English class．
根据句意用所给单词的适当形式填空．
Look! Your room is really （tidy）． You should learn to be organized．
Qian Xuesen （consider） as "Father of Missile（导弹）in China"．
Our earth is becoming more and more （pollute） because of the rapid increase in population．
I （not finish） my homework yet． I am afraid I can't go to the park with you．
的圆心为抛物线
的焦点，且与直线
相切，则该圆的方程为 ．
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