dual
01
双重的, 双的
having or consisting of two aspects, parts, functions, etc.
例子
The job requires a dual skill set, combining both technical expertise and creative thinking.
这份工作需要双重技能，结合了技术专长和创造性思维。
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
In Arabic, the dual form is used to distinguish between two objects or people.
在阿拉伯语中，双数形式用于区分两个物体或人。
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
She logged her first dual flight with the instructor to practice basic maneuvers.
她记录了与教练的第一次双人飞行，以练习基本操作。
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。
The dual in ancient Greek allowed speakers to specify when they were talking about pairs, like two people or objects.
古希腊语中的双数让说话者能够明确指出他们在谈论成对的事物，比如两个人或物体。
