The first, a jagged array of serrated teeth rooted in jaws that could crush steel.
第一就是满口参差的能够咬穿钢铁的锯齿状牙齿。
英语百科
Jagged array
In computer science, a jagged array, also known as a ragged array, is an array of arrays of which the member arrays can be of different sizes, producing rows of jagged edges when visualized as output. In contrast, C-styled arrays are always rectangular.