Polychlorization
[化] 多氯化反应
🗣️ 情景例句
Columbia's a terrific school.
Columbia，是一所很棒的学校。
Talk of the devil, and he is sure to appear.
说鬼鬼到。
The slope averages about 1 in 30, but contains steep,
坡度平均约为1/30，但其中包括陡峭的，