live catalyst

例句：

1. 1. The cat is living in the house with its owner.
   这只猫和它的主人一起住在房子里。
2. 2. The plant is thriving in the warm soil.
   这株植物在温暖的土壤中茁壮成长。
3. 3. The bird is singing a lively tune.
   这只鸟正在唱着欢快的歌曲。