我在超市里推着购物车挑选商品。

I'm pushing the ___trolley around the supermarket to pick up groceries.

我每天坐电车去上班，既环保又方便。

I take the ___trolley to work every day—it's eco-friendly and convenient.

服务员推着餐车送来了我们的早餐。

The server brought our breakfast on a wheeled ___trolley.