flea

例句：

1. 1. The dog had fleas on its fur.
   这只狗身上有跳蚤。
2. 2. She applied the flea repellent to her pet's skin.
   她给宠物涂了防跳蚤的药膏。
3. 3. The flea bites are itchy and uncomfortable.
   跳蚤叮咬很痒且不舒服。