Examples are as follows: 1. Stationery used: ballpoint pen refills as an example. Scientists synthesize plastics, designers design molds, workers inject molding, technical masters refine pen oil, scientists design equipment, workers assemble according to installation, electricians install electricity, and technicians install software.

Workers turn on the machine to produce finished products, staff package them, and then put them on the market for trading.

2. Food to eat: Take hot and sour potato shreds as an example. The farmer uncle buys the seeds.

Plant (potatoes and peppers).

Harvested when ripe.

Markets are sold and sold, rapeseed is planted and harvested, workers harvest and transport it to the oil pressing plant to press the oil, technicians make vinegar in a certain way, and chefs cook vegetables and serve them.

Foodies, let’s eat.

3. Clothes to wear: Farmers buy seeds to grow cotton, pick cotton, companies buy it into factories, workers (textile threads, weaving and printing), designers (cutting and making clothes), and staff package them into goods, and then you buy beautiful clothes

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