completely secured or protected
完全受保护或安全的 (wanquan shou baohu huo anquan de)
"All confidential data is kept under lock and key."
"所有机密数据都被保存在锁和钥匙之下。" (suoyou jimi shuju dou bei baocun zai suo he yaoshi zhi xia)
unnoticed or undetected
to have control or advantage over someone
completely flawless or ideal
Used to strongly show agreement
to make an enormous effort
to decline in quality or condition
