straight

/streɪt/

a heterosexual person; someone having a sexual orientation to persons of the opposite sex

中文释义：异性恋者

The survey asked participants whether they were straight, gay, or bisexual.

调查询问参与者是异性恋、同性恋还是双性恋。

He is straight and has been married to his wife for ten years.

他是异性恋，和妻子结婚十年了。