LSD是一种强效的致幻剂，能产生强烈的视觉扭曲。

LSD is a potent ___hallucinogen that can cause intense visual distortions.

这种蘑菇含有强烈的致幻剂，会让人看到不存在的色彩和图案。

This mushroom contains a powerful ___hallucinogen that makes people see colors and patterns that aren't real.