Hello! Can you help me understand the meaning of these 2 characters together?

Chinese Mandarin - 2nd Session (beginners) I started this session by learning some phrases and vocabulary related to the word "electricity" (diàn): diàn nǎo = computer, dian hua = telephone. Vocabulary: dianziyoujian = email faduanxin = text faxinxi = message mingpian = business card dizhi = address Phrases: ni de shou ji hao shi duo shao? = What's your mobile phone number? A gei B fa dianzi you jian = A sends and email to B ni chang chang gei ni de peng you da dian hua ma? = Do you often make phone calls to your friends? I went on learning some vocabulary related to family: dushengzi = only child haizi = child, kid erzi = son nver = daughter jiejie = big sister gege = big brother yeye = my father's father nainai = my mother's father waigong = my father's mother waipo = my mother's mother ayi = aunt shushu = uncle laogong = husband laopo = wife I also learned that I can address people who are around my own age by calling them "ayi" and "shushu," whereas I should address people who are much older than me in a different way.

Chinese Mandarin - First Session (beginners) During my first session of Chinese Mandarin, I had the chance to revise some basic phrases and vocabulary I've learned so far: - Introducing myself (my name, my job, my nationality, where I live...) - Time periods (morning, middle day, afternoon, evening, night), hour/day/minute, before/after work, half an hour/a quarter of an hour - When I was born: say the date - Describe what I did last weekend - Name of some countries (Australia, Ireland, China, Holland, Italy) - Verbs (to go, to do, to do some shopping) New Vocabulary: walian = baby face shíxí = internship maidongxi = to do shopping xuexi = to study zuo = to do shihou = time shiyou = roommate Aodaliya = Australia Helan = Holland Aierlan = Ireland Yidali = Italy hen kuai jian mian = see you soon