du·al /ˈdu(ə)l ||ˈdjuəl/
(a.)雙重的,雙的雙數
dual
自對偶
dual
雙
Du·al a. Expressing, or consisting of, the number two; belonging to two; as, the dual number of nouns, etc. , in Greek.
Here you have one half of our dual truth. --Tyndall.
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dual
adj 1: consisting of or involving two parts or components usually
in pairs; "an egg with a double yolk"; "a double
(binary) star"; "double doors"; "dual controls for
pilot and copilot"; "duple (or double) time consists
of two (or a multiple of two) beats to a measure"
[syn: double, duple]
2: 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"- R.W.Emerson; "every episode has its
double and treble meaning"-Frederick Harrison [syn: double,
twofold, treble, threefold]
3: a grammatical number category referring to two items or
units as opposed to one item (singular) or more than two
items (plural); "ancient Greek had the dual form but it
has merged with the plural form in modern Greek"