wobbling effect

例句：

1. 1. The boat was wobbling dangerously on the rocky shore.
   船在岩石岸边摇摇晃晃地行驶。
2. 2.The child was so excited that he was wobbling in his chair.
   孩子太兴奋了，以至于他在椅子上摇摇晃晃。
3. 3.The old tree was wobbling with age and needed to be replaced.
   这棵老树因为年岁已高而摇摆不定，需要更换。