1 to be carried or moved along by wind or water 漂；飘: The boat drifted out to sea. 小船往大海漂去。

2 to move slowly or without any particular purpose 慢慢移动；漫无目的地移动: He drifted from room to room. 他从这房间踱到那房间。She drifted into acting almost by accident. 她走上演戏这条路，几乎纯属偶然。

3 (used about snow or sand) to be moved into piles by wind or water （指雪或沙）堆积: The snow drifted up to two metres deep in some places. 某些地方的积雪深达两米。