dissipate

1. V-T/V-I When something dissipates or when you dissipate it, it becomes less or becomes less strong until it disappears or goes away completely. 驱散; 消散[正式]

The tension in the room had dissipated. 房间里的紧张气氛已经消散了。

2. V-T When someone dissipates money, time, or effort, they waste it in a foolish way. 浪费 (金钱、时间、努力等)[正式]

He needs someone who can keep him from dissipating his time and energy on too many different things. 他需要有人来阻止他浪费时间和精力做太多不同的事情。