a sickly green colour的用法和样例：
- The walls were painted a sickly green colour.
- The Shura is the vengeful ghost of a general slain by treason.The Shura appears as a horrible ghostly samurai armed with a sickly green blade that causes living bodies to shrivel and die.
- Her cheeks have a sickly pallor.
- He summoned up a sickly smile for camera.