1Firstly, I want to thank my family for their support throughout my studies.
2The company will address the issue of employee satisfaction firstly, and then move on to customer complaints.
3She began her speech by acknowledging the guests; firstly, she thanked the organizers.
4If you want to learn a new language, firstly, you need to decide which one you want to learn.
5The report will cover several topics, firstly, the current market trends, and secondly, the company's financial situation.