stratagem

1. N-COUNT A stratagem is a plan that is intended to achieve a particular effect, often by deceiving people. 計(jì)謀; 詭計(jì)[正式]

Trade discounts may be used as a competitive stratagem to secure customer loyalty. 商業(yè)折釦可以用作保持顧客忠誠度的一種競爭策略。