可以适当增加细节,以使行文连贯,字数100左右。
Dear Tom,
I'm so happy to write to tell you something about my new English teacher, Miss Lin.
Look forward to your early reply.
Yours,
Li Hua
已知复数z=x+yix,y∈R 且 |z-2|=1 则 x,y 满足的轨迹方程是____.