I cannot resist slipping in a word of advice.我忍不住想插上一句建议。You will see exactly where you are slipping up.你会确切地知道自己哪里出了错。The stair treads were covered with rubber to prevent slipping.楼梯踏板上覆盖着橡胶以防滑....
The surface of the gangplank was bossed to prevent slipping.跳板的表面被装上凸出物以防止滑动.The stair treads were covered with rubber to prevent slipping.楼梯踏板上覆盖着橡胶以防滑.He began to talk, slipping the words across.他开始讲话, 轻声把字吐出来。slipping...