此时群燕衔泥帮助筑巢，新巢终于又筑成，这对燕子又孵出一窝小燕。

Yan Qun soil at this time the title to help build a new nest finally built, it also swallows Xiaoyan clutch hatched.

youdao

此时群燕衔泥帮助筑巢，新巢终于又筑成，这对燕子又孵出一窝小燕。

Yan Qun soil at this time the title to help build a new nest finally built, it also swallows Xiaoyan clutch hatched.

youdao