keep upright

keep upright

美 　英

• 网络切勿倒置；请勿倒置；保持直立

例句

"When I first got on it I thought it would never work and at a slow speed it" s almost impossible to keep upright.

当我第一次驾驶时，我认为它肯定是没办法上路的，而且速度会非常的慢，并且要走直线也是很难的。