单语范例（未经PONS编辑处理）
Users have mentioned ingesting the liquid to reach euphoric stimulating effects similar to those of MDMA.
en.wikipedia.org The dose of MDMA, 1.7 mg/kg, was psychoactive and participants reported heightened mood, increased extroversion, feelings of altered reality, and mild perceptual alterations.
en.wikipedia.org Depression and deficits in memory have been shown to occur more frequently in long-term MDMA users.
en.wikipedia.org Throughout the 1980s, MDMA was administered in psychiatric and counseling settings, but recreational use also became increasingly widespread.
en.wikipedia.org For example, marquis turns black in the presence of MDMA, and a common misconception is that if the marquis goes black, you have MDMA.
en.wikipedia.org