学步的婴儿摇摇晃晃地走向他的妈妈。

The toddler took a few ___tottering steps toward his mother.

那位老人拄着拐杖，摇摇晃晃地走在街上。

The old man walked down the street with a ___tottering gait, leaning heavily on his cane.

老人拄着拐杖，脚步蹒跚地穿过马路。

The old man crossed the street with ___tottering steps, leaning heavily on his cane.