This is the 140th most frequent Chinese word.
内
"内" means "inside" or "inner."
In this sentence, '内' implies 'within' a certain timeframe, indicating a limit or scope.
我们将在三个月内完成这个项目。
We will complete this project within three months.
Here, '内' is used metaphorically to represent 'inner' or 'internal,' describing feelings within the heart.
他内心充满了喜悦。
His heart is filled with joy.
Here, '内' indicates 'inside' or 'within' the room, describing a specific area.