• ⺍(two hands (indicating learning))
• 冖(roof; house)
• 子(child)

A child sitting under a roof with two hands diligently studying represents learning.

• 夕(evening; night)
• 口(mouth; speech)

When it's dark and people can't see each other, they must use their mouth to call out names to recognize one another.

• 艹(grass; plant)
• 约(promise; bind)

Medicine is made from grass and plants, sounding like "wish" or "promise".

• ⺍(two hands (indicating learning))
• 冖(roof; house)
• 子(child)

A child sitting under a roof with two hands diligently studying represents learning.

• 夕(evening; night)
• 口(mouth; speech)

When it's dark and people can't see each other, they must use their mouth to call out names to recognize one another.

• 艹(grass; plant)
• 约(promise; bind)

Medicine is made from grass and plants, sounding like "wish" or "promise".