waddle的过去式和过去分词
例句：
1、She walked with a waddle.
她走起路来步履蹒跚。
2、A family of ducks waddled along the river bank.
一群鸭子沿河岸摇摇摆摆地走。
3、He came waddling down the hall like a penguin.
他在大厅里蹒跚而行，就像一只企鹅。
例句：
1、She walked with a waddle.
她走起路来步履蹒跚。
2、A family of ducks waddled along the river bank.
一群鸭子沿河岸摇摇摆摆地走。
3、He came waddling down the hall like a penguin.
他在大厅里蹒跚而行，就像一只企鹅。
