" Rollerblades" have just a single row of small wheels.

“旱冰鞋”只有一排小轮子。

All live in the fresh waters of South America and have a single row of sharp, interlocking teeth on each jaw.

它们都生活在南美洲的淡水中，每个下巴上都有一排锋利的、互锁的牙齿。

As discussed these bitlines are like highways, and the selectors at the top act as traffic lights that mediate the flow of information so that only a single row can use the highway, or is active at a time.

如上所述，这些位线就像高速公路，顶部的选择器充当交通灯， 调节信息流， 以便只有一行可以使用高速公路，或者一次处于活动状态。