An original plan or draft prepared before final decisions; a preliminary proposal commonly used in meetings, legislation, or project planning.
委員会は当初の原案を修正して採択した。
The committee amended and adopted the original draft.
新しい規則の原案を作成し、来週の会議で説明する予定だ。
We prepared the draft of the new rules and will explain it at next week's meeting.
原案どおりに進めれば、工期は短縮できるだろう。
If we proceed according to the original plan, the construction period should be shortened.