according to demand的用法和样例：
- Prices see-saw according to demand.
- From each according to his ability,to each according to demand.
- Ensure right person available at right time according to demand and business of department.
- In a flea market, prices fluctuate according to demand and supply, and therefore the Business is flexible.
- Various specifications of top, top mercerizing shrinkproof processing according to demand.