Can the European standard eight-character tail be inserted on the ordinary two cuttings?

I can't. You can only use the European standard eight-tail socket, which is a two-core AC socket for some small household appliances. Its socket looks like two circular depressions in the horizontal direction with two pins at the center. The plug corresponding to this socket is a plug with two round holes at the end of the dual-core power cord, which just matches the two pins of the socket. Its end looks like a number 8 lying flat, so it is called "8" suffix.