問題的關(guān)鍵是think better of,這是一個固定短語,意思是：改變主意,重新考慮
類似的例句：
1. He wanted to speak but thought better of it and held in.
他很想說出來,但仔細(xì)想想還是忍住沒說.
2. John told his mother he wanted to leave school, but later he thought better of it.
約翰告訴他母親說他想退學(xué),但后來改變了主意.
3. I was going to go, but I thought better of it.
我原來打算去的,后來又決定不去了.