"So we unquestionably noticed extra coordination within the activity past evening than we had found in past days, regarding who was dong that coordinating I'm not in a position to state but." indica­tive indica­tive pre­sent indef. donghatok donghatsz donghat donghatunk donghattok donghatnak 如下图所示：受敲击的鼓面振幅沿半径方向的分布就是一个贝塞尔函数(考虑正负号)。实际上，这些振动是... https://dongkhai61593.wizzardsblog.com/36425671/dongkhai-an-overview