concessional

adj.让步的,容许的

给予特别优惠的，特许的

形容词

1. The government offers concessional loans to small businesses to encourage growth.
政府向小企业提供特许贷款以鼓励其发展。

2. She received a concessional rate for the conference because she was a student.
因为她是学生，她享受到了会议的特别优惠价格。