adj.打滑的
动词slip的过去式和过去分词.
It's slipped my mind. 我把它给忘了。
He slipped into the house without being seen. 他没有被人看见就溜入了那间屋子。
He looked round and then slipped into the house. 他向四周看看，然后溜进屋里。
The soap slipped out of my hand. 肥皂从我手上滑落了。
He slipped on the slimy steps. 他在泥泞的台阶上摔倒了。
The thief slipped away down a side street. 小偷悄悄从一条小马路溜走了。
It slipped my mind. 我不留神忘了。
