重点词汇
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未知数
unknown number; variable; uncertainty; unknown quantity
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符号
symbol; sign; mark; notation; character; ditto; symbolic; iconic
中英释义：
未知数符号
时间: 2026-02-06 01:21:36
symbol for an unknown quantity
中英释义：
symbol for an unknown quantity
未知数
unknown number; variable; uncertainty; unknown quantity
符号
symbol; sign; mark; notation; character; ditto; symbolic; iconic