Here we go.我们走吧。/在这儿。

A: We're all ready to start the trip.

我们做好了旅行的准备了。

B: That's great. Here we go.

太好了!我们走吧。

Here goes.(困难的事情)得试试才行。/走吧。

A: l'm going to try to draw a picture. Here goes.

我想尝试画画，一定得试试才行。

B: I don't think you have much talent at drawing.

我认为你没多少绘画天赋。

A: It is too rainy to have a picnic today.

今天雨太大，不能去郊游了。

B: There goes that. Maybe we can go to the movies instead.

那就没办法了。要不然，我们去看电影吧。