Another factor contributing to the tendency to deny the assumption of a fixed human nature was that the concept has so often been abused as a shield behind which the most inhuman acts are committed.
2
他们把自己的人民当作挡箭牌。
They have used their people as a shield.
3
那是个意外,Jimmy用他儿子作挡箭牌。
It was an accident; Jimmy used the kid as a shield.