Closed circuit operation 的中文意思及词根分析

🧩 词语组成解析

closed [klozd]

adj. 关闭着的，封闭着的;密闭着的，保密的;<美>准备好了的，定了契约的; v. “close”的过去式和过去分词;

clos=close关闭+ed已...的→关闭了的

circuit ['sɝkɪt]

n. 电路，线路;巡回;唤醒，环形道;〔电〕电流; vt. 巡回，周游;

circu圆，环+it走→环行 → 环行；电路

operation [,ɑpə'reʃən]

n. 操作，经营;手术;[数]运算;作用;

oper 工作 + ation 表示行为、状态、过程 → n.操作；手术；运算

And it hung over Robbie's crib.

Robbie的小床也有过。

He emerged as leader at the age of thirty.

他在30岁时出人头地成为领袖。

Really? What's the trouble?

真的？怎么啦？

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