过了(le )几天,龚明又发现,小蓝每次飞回来时,小巧的嘴巴里总(zǒng )会衔回小虫细草(cǎo )什么的。莫非小蓝要储备食(shí )物(wù ),为将来(lái )打(dǎ )算?可燕子是一种(zhǒng )候鸟,夏天过(guò )后,它要迁徙的啊!储备这些食物(wù )究竟(jìng )是干什(shí )么的呢?渐渐的,鸟巢被小蓝衔回来(lái )的食物挤得(dé )满满当(dāng )当,小(xiǎo )蓝回来歇息时,就(jiù )没有了安身之所,只好疲惫地站在那根木梁(liáng )上(shàng )。
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