N-COUNT
誘餌;誘惑物;用作誘餌的人
If you refer to something or someone as a decoy, you mean that they are intended to attract people's attention and deceive them, for example by leading them into a trap or away from a particular place.
例句
Nick acted as a decoy after the dog attacked a group of children swimming in the river.
那只狗攻擊了在河里游泳的一群孩子后，尼克作誘餌要將其捉住。
He was booked on a flight leaving that day, but that was just a decoy.
他訂了那天起飛的航班，但那不過是個誘餌。