two-fold基本解释
adj.双面的;二倍的
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adj.双面的;二倍的
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"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"
"ate a double portion"
"the dose is doubled"
"a twofold increase"