A firewall provides an essential security blanket for your computer network.
防火墙为计算机网络提供了基本安全保障。
He never goes anywhere without his hat — it seems to be his security blanket.
他无论去哪儿都带着帽子——它似乎能给他带来安全感。
He never goes anywhere without his hat — it seems to be his security blanket.
他无论去哪儿都带着帽子——它似乎能给他带来安全感。
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