英語翻譯：

例句：

1. 她教起書來就像鴨子下水般輕而易舉。
   She's taken to teaching like a duck to water.
2. 湖里有許多鴨子在游泳。
   There are many ducks swimming in the lake.
3. 湖里有許多鴨子。
   There are many drakes and ducks on the lake.
4. 這只母鵝比那只鴨子大多了。
   This goose is much larger than the duck.
5. 他最喜歡吃的菜是烤鴨。
   His favorite dish is roast duck.