Sometimes he would sneak out of his house late at night to be with me

　　有時候，他會在深夜里偷偷溜出家與我相會。

　　She had always had a sneaking affection for him.

　　以前她一直暗暗傾心于他。

　　I managed to sneak a note to him.

　　我設法偷偷給他遞了張條子。

　　I sneaked a cake when they were out of the room.

　　趁他們不在屋里，我偷偷拿了一塊蛋糕。

　　I have a sneaking suspicion that she knows more than she's telling us.

　　我私下懷疑，她還知道一些情況，不想告訴我們。