dual

US /ˈduː.əl/
UK /ˈduː.əl/
"dual" picture
1.

雙重的, 雙份的

consisting of two parts, elements, or aspects

:
•
The car has a dual exhaust system.
這輛車有雙排氣系統。
•
She has dual nationality.
她擁有雙重國籍。
:
doubletwofoldtwinbinarybipartite
:
dual controls