Definition
primarily; as the most important consideration or fact.
首先也最重要的
First and last, safety should be everyone’s primary concern.
首要地，安全應該是每個人的主要關注點。
We must remember, first and last, that this is an investment in our children’s education.
我們必須記住，首要地，這是對我們孩子教育的投資。
He was, first and last, a dedicated professional.
他首要地是一位專業的奉獻者。