Firstly, they spent more time in search food ．
首先,他们花了更多的时间寻找食物。
Firstly, most companies offer too many products in pink.
首先,大多数公司提供太多粉红色的.产品。
Celebrating the festival was firstly started by the US in 1935.
这个节日最早在1935年由美国发起庆祝。
Firstly, it's expensive, and secondly, it's too slow.
首先是价格贵，其次，速度太慢。
Firstly, they must make certain that their pension needs are adequately catered for
首先，他们得确保他们能获得足够的养老金。