sexual orientation（性取向）：

heterosexual（异性恋） 

homosexual（同性恋）

asexual（无性恋）

Bisexual（双性恋）: A person emotionally, romantically or sexually attracted to more than one sex, gender or gender identity though not necessarily simultaneously, in the same way or to the same degree.

Pansexual（泛性恋）：Describes someone who has the potential for emotional, romantic or sexual attraction to people of any gender though not necessarily simultaneously, in the same way or to the same degree

Queer（酷儿）: A term people often use to express fluid identities and orientations. Often used interchangeably with "#LGBTQ,"

LGBTQ is the more commonly used term in the community; possibly because it is more user friendly! You may also hear the terms “Queer Community” or “Rainbow Community” used to describe LGBTQ+ people.

LGBT - Wikipedia

en.wikipedia.org/wiki/LGBT

To recognize this inclusion, a popular variant adds the letter Q for those who identify as queer or are questioning their sexual identity; LGBTQ has been recorded since 1996. Those who add intersex people to LGBT groups or organizing use an extended initialism LGBTI. 

见：

Pansexual: Understand your sexual orientation better

Pansexual: Understand your sexual orientation better