firstly，英语单词，主要用作副词，作副词时译为“首先（主要用于列举条目、论点时）；第一”。

ADV You use firstly in speech or writing when you want to give a reason, make a point, or mention an item that will be followed by others connected with it. 第一 (演讲、文章中用于列举条目); 首先 [ADV with cl/group]

Firstly Thefunctionoverview 一功能概述

firstly quality 品质第一

firstly adopted 首次采用

firstly introduces 首先介绍了

Firstly Parents 首先父母

firstly analyzing 首先分析

firstly considered 首先考虑

Firstly The 通过介绍

Advoacte firstly 首倡

There are two reasons for this decision: firstly...

做此决定理由有二：第一…

It makes you look firstly at how you're treated and secondly how you treat everybody else.

它让你首先看别人怎样对待你，其次看你怎样对待别人。

The programme is now seven years behind schedule as a result, firstly of increased costs, then of technical problems.

该计划现在比预定的计划晚了7年，首先是因为费用增加，其次是由于技术问题。