| 词汇 |
security clearance |
| 释义 |
security clearance1 (经过安全调查后) 准许参与某项工作2 安全调查; 忠贞调查 |
| 随便看 |
- USHA, USHA
- usher
- usherette
- Ushuaia
- USIA
- USIB
- USIS
- Usk
- USL
- USLTA, USLTA
- USM
- USMA, USMA
- USMC
- USMCR, USMCR
- USNA, USNA
- USNG, USNG
- USNR
- USN, USN
- US Open
- USO, USO
- US PGA
- USPHS, USPHS
- USPO
- USP, USP, USPharm
- USRC, USRC
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