孩子们推着玩具车在花园里慢慢滚动。

The kids pushed the toy car as it ___trundled slowly through the garden.

孩子们把空桶滚下山坡。

The kids ___trundled the empty barrel down the hill.

老人推着购物车在超市里缓慢前行。

The old man ___trundled his shopping cart slowly through the supermarket.