subscription certificate

例句：

1. 1.The company issued a subscription certificate to the new employees.
   公司为新员工颁发了订阅证书。
2. 2. The subscription certificate was used as proof of purchase for the new car.
   订阅证书作为新车购买的证明。
3. 3.The government requires all citizens to have a valid subscription certificate before they can vote.
   政府要求所有公民在投票前必须持有有效的订阅证明。