• 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.

• 禾(rice plant; grain)
• 刂(knife; blade)

Using a sickle to harvest ripe grain is how you obtain profit.

• 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.

• 禾(rice plant; grain)
• 刂(knife; blade)

Using a sickle to harvest ripe grain is how you obtain profit.