having more than one decidedly dissimilar aspects or qualities;
"a double (or dual) role for an actor"
"the office of a clergyman is twofold; public preaching and private influence"
"every episode has its double and treble meaning"
twice as great or many;
"ate a double portion"
"the dose is doubled"
"a twofold increase"
Adverb:
by a factor of two;
"the price increased twofold last year"
twofold的用法和樣例：
例句
用作形容詞 (adj.)
The price of TVs are twofold down over these years. 近幾年來，電視機的價格下降了兩倍。
Therefore a threat carries a twofold risk. 因而威脅具有雙重風險。
Mr Zhang says the regime's motives are twofold. 張教授說該政權具有雙重動機。
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