In this manner, the negative charge hops downward from leader to leader like a frog jumping from lily pad to lily pad across a pond.

 
  • 负电荷的这种跳跃方式就好像青蛙在睡莲上跳跃一样,从这个睡莲跳到另一个睡莲,从而跃过池塘。
今日热词
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