1. When I asked where the restaurant was, the shepherd boy pointed to Xinghua Village. Ethanol is a transparent liquid with a special fragrance and is easily volatile. The shepherd boy can smell the smell of ethanol from a long distance away, which shows that it is volatile.
2. The aroma of wine is not afraid of the depth of the alley. Ethanol is a colorless, transparent, fragrant, and volatile liquid; the main component of wine is ethanol. The aroma of real good wine can float very far, which represents the volatility of ethanol.