Twitter is the place to find out about what's happening in the world right now. Whether you're interested in music, sports, politics, news, celebrities, or everyday moments.
推特是用來了解現(xiàn)在世界上發(fā)生的一些事情，如果你對音樂啦，運動啦，政治啦，新聞啦，名人啦和每日的動態(tài)感興趣，來推特就對了。
Twitter was created in March 2006, and until 2016, there are 319 million active users.
推特在2006年，三月份創(chuàng)建，直到2016年，現(xiàn)在已經(jīng)有3.19億活性用戶了。

Instagram is a great place to show off one's photography skills, what they did over the weekend, or maybe post a hundred different pictures of their cute pets.
Instagram是人們分享拍照技巧、周末生活和發(fā)布數(shù)百張可愛寵物的好地方。
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.
YouTube是可以上傳自己的視頻，看視頻，或者給視頻評論的地方。
WhatsApp is a free to download messenger app for smartphones. WhatsApp uses the internet to send messages, images, audio or video.
WhatsApp是一個免費的發(fā)短信的軟件。用來發(fā)送文字信息，照片，音頻和視頻。