上上下下英释中释to a higher position and then a lower position, several times
1 The escalator wafts us up and down every day..自动扶梯天天送我们上上下下。
2 What you do is squat up and down really fast..你 所要做的就是真正快速地上下蹲坐。
更新时间:2025-02-22 14:58:03