ADJ
(of a waveform) having an amplitude that varies linearly with time between two values, the interval in one direction often being much greater than the other (波形)锯齿的
Crowned by sawtooth peaks, mantled in forest cloaks of green oak, chestnut and pine, and shot through with rushing rivers and tumbling cascades, Corsica is one of the most dramatic, diverse and downright gorgeous islands in the Mediterranean.