以杜后患 [
yǐ dù hòu huàn]
forestall future trouble
provide against future troubles
prevent any future complications
- 帕尔帕廷安慰阿纳金,他的行为完全是必要的,杜库太过危险,必须杀死他以除后患。
Palpatine tried to reassure Anakin that it was necessary -- Dooku was too dangerous to be taken alive.