有几点请题主注意:
1. 尽管这里的15天庆祝活动是泛指的(并未指明具体哪一年),但celebration activities和lasting 15 days依然是特定的,它们前面应各加上一个定冠词the, 即依然要表达成
during the celebration activities of the lasting 15 days… .
2.如果“各式各样”强调的是种类全面,就用(there are) all kinds of…;但如果是强调种类各异、各具特色,则应该用(there is) a variety of … .
3.春节的规范说法是the spring fastival,其中的定冠词the不可少。
而且,给我的话,这句汉语更可能说成
There is always a variety of lucky food in the long lasting 15-day celebration activities for the spring fastival in China.