您要查找的是不是：
- The digital signature is valid (valid: Refers to the status of a certificate checked against a certificate authority's database and found to be legitimate, current, and not expired or revoked. 该数字签名有效(有效:一种证书状态,根据证书颁发机构的数据库对证书进行检查后发现它是合法的、最新的,而且没有过期或被吊销。
- The plumber made a careful check of the pipes. 管子工对管道做了仔细的检查。
- Do you accept foreign exchange certificate? 你们接受外汇券兑换券吗？
- Do you check my vaccination certificate, too? 你也要检查我的疫苗注射证明书吗?
- I'll check the material certificate of the pipe. 我要这管子的材质。
- Sunday is the best day to check the want ads. 星期天是在报纸上查寻招聘广告的最好的日子。
- She's going in for the Cambridge First Certificate. 她将参加剑桥初级证书考试。
- You can check my health certificate. 我的健康证明上有记录。
- Have you got any rain check for the following game? 你拿到下一场球的免费票了吗？
- It always pays to give your paper one final check. 写了东西最后检查一遍总是有好处的。
- He was careful enough to check up every detail. 他非常仔细，把每一个细节都核对过了。
- Please check up these references. 请核对这些参考资料。
- Carefully check the car being scorched. 仔细检查过被烧焦了的汽车。
- A certificate conferring a privilege or honor. 执照，奖状赋予某种荣誉和特权的证书
- He predated the check by five days. 他把支票上的日期填早了五天。
- I'll have to check the entries in the ledger. 我得核对一下总帐的项目。
- Is there a place we can check in our coats? 有暂存大衣的地方吗?
- The driver's certificate was suspended by the police. 这个司机的驾驶执照被警察吊销了。
- I accept a check in lieu of cash. 我接受支票代替现金。
- Don't forget to check on your work. 别忘记检查一下你们的工作。
