燕子衔食

Explanation: The difficult than Yuyu Zi. 　　Source: Yuan Anonymous "frozen Su" was said, the second delay off Qiexiu October, cuddle dry to wet only the small, child lifting his huge tone, the title just Piansi swallow food. " 　　Examples: ~ Where the mother suffered from the word parenting, often have this language. ★ Sun Jinbiao "popular saying goes Shu Zheng family"