• 艹(grass; plant)
• 监(supervise; monitor (for sound))

Plants and grass are carefully monitored to extract the precious blue-green color.

• 糹(silk thread; filament)
• 婁(prolong; repeat)

A thin strand of thread pulled long becomes a group or swarm called lũ.

• 艹(grass; plant)
• 监(supervise; monitor (for sound))

Plants and grass are carefully monitored to extract the precious blue-green color.

• 糹(silk thread; filament)
• 婁(prolong; repeat)

A thin strand of thread pulled long becomes a group or swarm called lũ.