keep right.其他常见交通英文：
1. 靠右行驶：Drive on the right.
2. 靠右站立：When taking the escalator, you should stand on the right and pass on the left. 坐扶梯的时候，靠右站立，从左边通过。
3. 靠右走：When you walk, stay close to the right. 或者：Walk on your right. 走路的时候靠右。
4. 往右靠靠：Move to the right a bit.
