The lantern Festival lanterns, light red joyous holiday season. A drink on send acacia, the month circle person circleband round!
元宵佳节闹花灯，灯红人喜庆佳节。举杯邀月送相思，月圆人圆乐团圆！
2
Just like a band or gang of superheroes needs members who have different talents and powers, a circle of friends should have exactly the same thing.
就像一个乐队或是一群超级英雄需要具有不同天赋和能力的成员，一个朋友圈也应这样。
3
The simplified method has been adopted to confirm the limit frequency of limit circle of phase-lock control loop. The general expression of the capture band has been derived.