renew，英文合同常见词，一般指合同、证书等到期后续期。

1例句

This Agreement shall become effective from the Effective Date and have a term of oneyear (“Term”), which shall be automatically renewed for successive one-year terms unless terminated by either Marketing Partner or Alipay with 30 day written notice prior to the end of the then-current Term.  

本协议应从生效日起生效，且有效期为1年（“有效期”），同时应自动续期1年，除非市场营销合作伙伴或支付宝任何一方在当前有效期届满前30天书面通知对方。

2例句

The issued Certificate has one-year validity by default and can be renewed if the partner passes xxx’s evaluation. 

颁发证书默认1年有效期，且合作伙伴通过xxx的评估后该证书可续期。