谁言寸草心: such kindness of warm sun can't be repaid by grasssuch kindness of warm sun can't be repaid by grass
悠悠: 1.(长久; 遥远) long; long-drawn-out; remote 短语和例子悠悠无期 at some distant time; 悠悠长夜。 the night seemed to drag.2.(从容不迫) leisurely; unhurried 短语和例子悠悠自得 carefree and content
