柯林斯詞典chlorophyll /?kl??r?f?l/ 1. N-UNCOUNT Chlorophyll is a green substance in plants which enables them to use the energy from sunlight in order to grow. 葉綠素 返回 chlorophyll劍橋詞典the green substance in plants , that allows them to use the energy from the sun 葉綠素 返回 chlorophyll