dual
01
双重的, 双的
having or consisting of two aspects, parts, functions, etc.
例子
Her dual roles as both a teacher and a coach made her a key figure in the school.
她作为教师和教练的双重角色使她成为学校的关键人物。
02
双数
(grammar) describing words in some languages that specifically indicate the presence of exactly two people or things
例子
The dual pronoun in Sanskrit is different from the singular and plural forms.
梵语中的双数代词与单数和复数形式不同。
03
双人, 双操纵的
(of a flight) involving two people, typically an instructor and a student, in a training aircraft where both have access to controls
例子
The pilot-in-training completed several dual flights before flying solo.
训练中的飞行员在单独飞行前完成了数次双人飞行。
Dual
01
双数, 双数形式
the grammatical category in some languages that specifically refers to two items, people, or things, distinct from singular and plural forms
例子
In Classical Arabic, the dual is used to indicate exactly two of something, different from the singular and plural.
在古典阿拉伯语中，双数用于确切表示两个事物，不同于单数和复数。
