双下巴

例句：

1. 1. She was embarrassed to show her double chin in front of everyone.
   她很尴尬，在大家面前露出双下巴。
2. 2. The man had a double chin and looked older than he really was.
   那男人有双下巴，看起来比实际年龄要大。
3. 3. The celebrity's double chin made him look unattractive.
   这位名人的双下巴让他看起来很不吸引人。