n.an evil act not necessarily punishable by law
an argument that challenges and opposes other arguments.
a process that separates materials based on the size of their particles
a separation technique that results in the formation of pure solid particles of a substance from a solution containing the dissolved substance
adj. or n 挥发物
easily change to gas state at room temperature.
The change of state from a gas to a liquid
a precipitated solid substance in suspension or after settling or filtering
a legal right guaranteed by the 15th amendment to the US constitution
made timid or fearful as by threats