A Chinese knot(结)is usually made of a thin rope(绳子)．It can be in the shape of an animal，a flower or a Chinese character with the special(特殊的)meaning．Red ropes are usually used because red is a lucky colour for Chinese people． Many Chinese knots have special meanings．People think that these knots can bring them happiness(幸福)or good luck，so they carry the knots with them or put them up at home．