first line of defense
英
美
- 第一道防线
双语例句
- The first line of defense against disaster is a backup of the data.
备份的数据是应对灾难的第一道防线。 - Traditionally, users usually adopt Firewall as their first line of defence.
传统上，网络用户一般采用防火墙作为安全的第一道防线。
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