首先的副詞用英語怎麼表達？

Firstly, they spent more time in search food ．

首先,他們花了更多的時間尋找食物。

Firstly, most companies offer too many products in pink.

首先,大多數公司提供太多粉紅色的'產品。

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

這個節日最早在1935年由美國發起慶祝。

Firstly, since we know that familiarity makes time pass faster, we can expose ourselves to as many new experiences as possible.

首先，既然我們知道熟悉會讓時間過得更快，我們就可以通過讓自己接觸儘可能多的新經歷來減緩時間。

Firstly, food is often thrown away before it reaches customers because too much of it is produced, or because it is not kept properly in farms.

首先，由於食物的產量太高，或者是在農場裏沒有得到妥善保存，食物往往在到達顧客手中之前就被扔掉了。