Firstly, they spent more time in search food ．

　　首先,他們花了更多的時(shí)間尋找食物。

　　Firstly, most companies offer too many products in pink.

　　首先,大多數(shù)公司提供太多粉紅色的產(chǎn)品。

　　Celebrating the festival was firstly started by the US in 1935.

　　這個(gè)節(jié)日最早在1935年由美國(guó)發(fā)起慶祝。

　　Firstly, it's expensive, and secondly, it's too slow.

　　首先是價(jià)格貴，其次，速度太慢。

　　Firstly, they must make certain that their pension needs are adequately catered for

　　首先，他們得確保他們能獲得足夠的養(yǎng)老金。