Complex sentence: In the most widely-spoken tonal language, Chinese, tones are distinguished by their shape (contour) and pitch range (or register), most syllables carry their own tone, and many words are differentiated solely by tone.
Split into simpler sentences: In the most widely-spoken tonal language, Chinese, tones are distinguished by their shape (contour) and pitch range (or register). Most syllables carry their own tone and many words are differentiated solely by tone.