柱头

例句：

1. 1. The column of light was shining through the window.
   一束光从窗户中透进来。
2. 2. The plant's column is tall and straight.
   这株植物的柱状部分又高又直。
3. 3. The column of smoke rose up from the fire.
   烟雾柱从火中升起。