Each row contains the orderkey of the order it is part of.
每行包含它所属订单的订单键。
2
These include the centuries-old custom of "bul", where leaders would call a temporary stop to fishing for key species in order to give fish stocks an opportunity to replenish.
The key variables driving cost are size and type of order, special versus standard order, and so on, not high-loyalty versus divided-loyalty customers.