Unstable systems
[计] 不稳定系统
🧩 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
Now hear this!
你听着！
Don't you think it's too formal?
你不觉得太正式了吗？
She does, doesn't she! I read she's twenty-nine,- but she must be at least forty.
是的，谁说不是呢！我从报上看到她是29岁，但她一定至少有40岁了。