Defense information systems agency
un. 国防信息系统管理局\\n
🧩 词语组成解析
n. 体制, 体系；制度；系统（system的复数形式）
🗣️ 情景例句
and the pain is so bad.
疼得很厉害。
I didn't read the whole paper, headlines.
我没有看到报纸的全部，我只是大概看了标题。
they are not prepared even to admit the possibility that noise affects people.
甚至不愿承认噪音可能对人有影响。