作业精灵老师示例：
1. The Spring Festival comes in January or February. People usually get together with
their family members. They eat dumplings at this festival.
2. The Mid-Autumn Festival is in September or October. People usually look at the moon
at night with their families. They eat moon cakes and fruit.
3. The Dragon Boat Festival is in May or June. People usually watch dragon boat races
in some places. People eat rice dumplings at this festival.
4. The Double Ninth Festival is in October or November. It is a festival for old people.
People usually visit their parents and grandparents. They also climb mountains and
eat rice cakes at this festival.
