太阳落山后，彩虹逐渐消失了。

After sunset, the rainbow slowly ___disappeared.

魔术师一挥手，硬币就消失了。

The magician waved his hand and the coin ___disappeared.

如果不采取行动，这些珍稀动物可能很快就会从地球上消失。

If no action is taken, these rare animals may ___disappear from the earth soon.