- 对 對 prepositionto faceto face; to be opposite to
- 氨基 nounamino(bound form) amino; an amino group consisting of one nitrogen atom and two hydrogen atoms
- benzeneA colorless, aromatic, flammable liquid chemical derived from coal and petroleum; used as a solvent, fuel, and in manufacturing synthetic resins and pesticides.
- acetonea volatile, colorless liquid with a strong odor used as a solvent in making artificial fibers and explosives