Do not take your bag on the shoulder when riding motorcycle. You'd better take the bag in front of your body or put it in the bicycle box.

骑、坐摩托车时，请勿随意将手提包和袋背在背上、跨在肩上，最好是捂在身前或放进车箱里；

youdao

Do not take your bag on the shoulder when riding motorcycle. You'd better take the bag in front of your body or put it in the bicycle box.

骑、坐摩托车时，请勿随意将手提包和袋背在背上、跨在肩上，最好是捂在身前或放进车箱里；

youdao