how to translate this sentence

lily88888UID: 2828533

Each time they are released at a specific site they take a shorter amount of time to orient themselves before flying home.

duijinxiaoziUID: 2585955

[Each time they are released at a specific site] they take a shorter amount of time to orient themselves before flying home.
每次他们被放到特定位置的时候，在飞回家前，他们就用更少的时间，来确定自己的位置，方向。

jasonivyUID: 2654603

[Each time they are released at a specific site] they take a shorter amount of time to orient themselves before flying home.
每次他们被放到特定位置的时候，在飞回家前，他们就用更少的时间，来确定自己的 ...
duijinxiaozi 发表于 2010-6-21 12:32

个人觉得，前半句应该译为“每次他们在一个特定位置上被放开的时候”