ADV
第三(點)
You use thirdly when you want to make a third point or give a third reason for something.
例句
First of all, there are not many of them, and secondly, they have little money and, thirdly, they have few big businesses.
首先，他們人數不多;第二，他們錢很少;第三，他們沒有幾家大企業。