她意志薄弱，总是被他人的意见左右而无法坚持自己的计划。

She is so ___weak-willed that she always changes her plans when others disagree.

她意志薄弱，总是被朋友说服去买不需要的东西。

She is ___weak-willed and always gets persuaded by friends to buy things she doesn't need.