▲last 作副词可表（位置）“在最后”；表（时间）“最近一次；上次”；表（总结）“最后”。如：

He came last in the race. 他赛跑落得了最后。《牛津高阶英汉双解词典》

How have you been since I saw you last? 别来无恙乎?《现代汉英综合大词典》

Last, a few words about the final test for the term. 最后，谈谈我们这学期的期末考试。《现代英汉词典》

▲lastly表（列举）“最后；最后一点”。如：

They wash their hands, arms and faces, and lastly, they wash their feet. 他们洗了手、胳膊和脸，最后脚也洗了。《柯林斯高级英语学习词典》

Lastly, I would like to ask about your future plans. 最后，我想问一下你未来的计划。《柯林斯高级英语学习词典》

Lastly, could I ask all of you to keep this information secret? 最后一点就是，我可以要求你们大家都保守这个信息的秘密吗？《朗文当代英语词典》