Sometimes he would sneak out of his house late at night to be with me
有时候，他会在深夜里偷偷溜出家与我相会。
She had always had a sneaking affection for him.
以前她一直暗暗倾心于他。
I managed to sneak a note to him.
我设法偷偷给他递了张条子。
I sneaked a cake when they were out of the room.
趁他们不在屋里，我偷偷拿了一块蛋糕。
I have a sneaking suspicion that she knows more than she's telling us.
我私下怀疑，她还知道一些情况，不想告诉我们。