Of course.
当然。

A：We are having a party tomorrow night. Would you like to come?
B：Of course. I love parties.
A：我们明天晚上要开派对。你要来吗？
B：当然，我最爱派对了。

A：For the meeting tomorrow, please wear a suit.
B：Of course. I always wear a suit for meetings.
A：请穿着西装参加明天的会议。
B：当然，我总是穿西装参加会议。