initially:
adv. 最初，首先开头Initially， the computer worked fine.
开始时电脑运转良好。
The theory was initially approved.
这一理论起初受到了支持。
Initially， people were aginst the law.
最初，人们都不同意这个法律条规。
The damage was far more serious than initiallybelieved.
损失比最初认为的要严重得多。
firstly:
adv. 首先（主要用于列举条目、论点时）第一Firstly， we want to achieve the best quality in this industry.
第一，我们要做到这个行业的最好质量。
I should firstly complete the task assigned by the superior.
我应该首先完成上级交代的任务。
