Pure rectified spirit, above proof; before it is lowered to be fit for human consumption: " words that burn" indeed'.
纯洁的精神, 超越证据; 在它被降低以适合人类消费之前:确实是“燃烧的话” 。
英语百科
Rectified spirit
Rectified spirit, also known as neutral spirits, rectified alcohol, or ethyl alcohol of agricultural origin is highly concentrated ethanol which has been purified by means of repeated distillation, a process that is called rectification. In some countries (e.g. India), denatured alcohol or denatured rectified spirit may commonly be available as "rectified spirit", but this is poisonous and ingestion may be fatal.