试题题干
Translate the following sentence into Chinese.
When pigeons can see the sun, they use it as their main means of direction finding.
参考答案
试题解析
考点：use it as把它作为······；main means of··· 主要工具；direction finding寻找方向。
句子结构：When pigeons can see the sun为时间状语从句，主句为they use it as their main means of direction finding.