dissipate
v
1 [I, Tn] (cause sth to) scatter or vanish (使某事物)消散, 消失
The mist quickly dissipated as the sun rose. 太阳升起时雾很快就消散了.
Her son's letter dissipated all her fears and anxiety. 她儿子的来信消除了她一切恐惧和焦虑.
2 [Tn] waste (time, money, etc) foolishly 浪费(时间、 金钱等)
dissipate one's efforts, energies, fortune 浪费自己的精力、 体力、 财产.
No, we didn't fix anything. We thought we might go out, but we said we'd check with each other first. And now I'm telling you I can't manage this Friday. Another time, possibly, but not Friday.