School lunches are getting healthier, but they still have a long way to go.

学校午餐越来越健康了，但还有许多待改进之处。

Even dairy farms, where robots do a small share of milking, have a long way to go before they're automated.

即使是机器人只完成一小部分挤奶工作的奶牛场，要实现自动化也有很长的路要走。

But we have a long way to go.

但是，我们有一段很长的路要走。

They have a long way to go.

他们还有很长的路要走。

We certainly have a long way to go.

当然，我们还有很长的路要走。