简单

simple; plain; brief; uncomplicated; straightforward; easy; elementary; undemanding; simply; plainly; simplicity; easiness; simplify; make simple; keep it simple; make it simple; tout court; easy as pie

颜色

color; colouring; hue; complexion; countenance; facial expression; good looks; coloration; pigment; dyestuff

儿歌

nursery rhyme; children's song; rhyme