A railway line crosses the park so children must not be allowed to stray.有一条铁路横穿该公园，因此必须禁止小孩子在附近闲逛。Promise yourself that you'll try not to stray from the issue at hand.你要对自己保证尽量不偏离当前的这个话题。Be careful not to stray from the path.小心，不要偏离道路。Walkers are reminded not to stray from the path.步行者被提醒不要偏离道路。