1、They spring up quickly after rains, when the surface is moist. Then, for a brief time, the desert can be literally carpeted with color.(當(dāng)雨后地表還潮濕時(shí)它們就迅速發(fā)芽，然后在一個(gè)短時(shí)間里，給沙漠鋪上綠色地毯。)
2、In winter, the ground wouldbe carpeted with a thick layer of snow.(冬天，地面上鋪滿了一層厚厚的雪。)
