culm colour

例句：

1. 1. The farmer used the culms to make a fire.
   农民用秸秆生火。
2. 2. The plant grows tall and strong, with long culms.
   这种植物长得又高又壮，有长长的秆子。
3. 3. The culms are used for making baskets and other crafts.
   秸秆被用来做篮子和其他工艺品。