He says that a two twice-twisted twine twisted twice twists twice as tight as a one once-twisted twine twisted twice.
But I say that a two twice-twisted twine twisted twice does not twist as tight as a one once-twisted twine twisted twice.
他说一根两股两次扭曲的合股线和一根一股两次扭曲的合股线扭得一样紧。
但是我说一根两股两次扭曲的合股线不如一根一股两次扭曲的合股线扭得那样紧。