The control is a key problem to develop walking machine.
控制问题是步行机研制中的关键问题。
One day, while walking on the street, she is sucked into a machine.
一天，当走在街上的时候，她被吸进了一台机器里。
We're now walking past the printing machine.
我们现在正经过印刷机。
Walking down and up the stairs would beat any exercise machine.
上下楼梯课比什么健身器材都有用。
Walking down and up the stairs would beat any exercise machine.
上下楼梯课比什么健身器材都有用。
应用推荐