来回奔跑
Run back and forth
以上为机器翻译结果，长、整句建议使用 人工翻译 。
骑师骑着马在跑道上来回奔跑。
The jockey ran the horse up and down the track.
youdao
它在楼梯上来回奔跑。
Up and down the stairs it ran.
王斌，住孤儿院，每天为节省三餐费用在学校和孤儿院之间来回奔跑。
Orphan Wangbin, living in an orphanage, has to run between school and orphanage for saving the cost of B/L/D.
应用推荐
模块上移
模块下移
不移动