没想到英语怎么说

unexpectedly

万万没想到It has never occured to someone that......如：It has never occured to him that he appeared at that occasion.他万万没想到，他会在那个场合出现。或 have never expected somethig could really happen to someone.He had never expected the president could shake hands with him.他万万没想到总裁能与他握手。

I didn't expect that (to happen).

没想到[词典]littledoesonethink;[例句]我想帮助他，没想到反而给他添了麻烦。Imeanttohelphim;unexpectedlyIhavebroughthimtrouble