Kindle Unlimited,Scribd 听力: Podcast Addict,Spotify 口语: HelloTalk,Tandem 语法: Grammarly,Sentence Builder 针对儿童 Duolingo Kids ABCmouse PBS Kids Games Khan Academy Kids LingoKids 针对旅行 Google Translate TripLingo iTranslate Rosetta Stone Phrasebook Learn Languages with Babbel (Tr多媒体el Language Pack) 针对商务 Rosetta Stone Business LingQ Business Coursera for Business LinkedIn Learning Udemy for Business 其他功能 离线访问: Lingvist,Duolingo 游戏化: Duolingo,Babbel 社交互动: HelloTalk,Tandem 个性化学习路径: Busuu,Lingoda AR/VR 支持: Mondly,Google Expeditions