Agender means having no gender or feeling genderless. Term emerged in 2000 on UseNet forum about God being agender. First legally agender person in US granted name and sex change in 2017
UTAUT explains user intentions and behavior in information systems. Model consists of four key constructs: performance, effort expectancy, social influence, and facilitating conditions. Gender, age, experience, and voluntariness moderate the impact of constructs. Venkatesh et al. (2003) found it explains 70% of behavioral intention variance
Politeness is the practical application of manners to avoid offense and create comfort. Brown and Levinson identified four types: negative, non-assertive, and assertive politeness. Positive politeness allows breaking cultural standards within personal boundaries
German nouns have three genders: masculine, feminine, and neuter. Article choice depends on noun's gender and sentence case. Gender and case determine appropriate indefinite article usage
Workbook presents 23 grammar points in realistic contexts. Written by Stella Peyronel and Ian Higgins for English-speaking learners. Includes exercises, glossary, and answer keys at the end
性別（sex），为一种繁殖系统特性，划分不同个体的分类方式. 生物中有許多物種可以劃分成雄性和雌性. 有性生殖是雄性和雌性生物的基因特性混合重組