stable air mass

例句：

1. 1. The weather is stable today.
   今天天气稳定。
2. 2. The company is stable and has a good reputation.
   这家公司稳定，有良好的声誉。
3. 3. The economy is stable, but there are still concerns about inflation.
   经济稳定，但通胀仍有担忧。