The main purpose is to ...
中心的な意味
行動の最も重要な目的を明確にする。
今回の文脈
The main purpose is to learn how individual stocks work.
別の文脈
The main purpose is to improve my speaking skills.
The main purpose of the meeting is to share information.
The main purpose is not to make money but to gain experience.
使える場面
ある行動について、誤解されそうな目的と本当の目的を区別するとき。
今回特に使える形
The main purpose is not to make a profit. It’s to learn how the market works.