1. The main reason for the delay was unexpected traffic.
主要原因是突发的交通堵塞。

2. The main character in the story is a brave young girl.
故事中的主要人物是一个勇敢的小姑娘。

3. The main goal of the project is to increase sales by 20%.
该项目的主要目标是将销售额提高20%。

4. The main course at the dinner party was a delicious roast chicken.
晚宴上的主菜是一只美味的烤鸡。

5. The main entrance to the building is located on the left side.
建筑物的主要入口位于左侧。

6. The main topic of discussion at the meeting was the budget for the upcoming year.
会议讨论的主要话题是明年的预算。