Definite operator
[计] 定算子
🧩 词语组成解析
🗣️ 情景例句
Why were you out of work for so long?
你为何这么久没有工作？
All products have to pass strict inspection before they go out.
所有产品出厂前必须要经过严格检查。
He noticed the remains of a snake which was wound round the electric wires of a 16,000-volt power line.
他发现了缠绕在16，000伏高压线上的一条死蛇。