我们正在绕着圈子前进。
The climber, get past the footprints are unfortunately, lost to forward direction is very dangerous.对于攀登者来说,失掉往昔的足迹并不可惜,迷失了继续前时的方向却俐很危险。
In this scenario, the matcher mainly moves in a forward direction, often by more than one character at a time.在这个场景中,匹配器主要是向前移动,一次通常移动不止一个字符。