标题: Duolingo Blog. The Best Language Knowing Application 2024 Edition. [打印本页] 作者: VerenaRuss 时间: 2025-3-28 12:12 标题: Duolingo Blog. The Best Language Knowing Application 2024 Edition.
The 50 Languages app has a riches of material for studying lots of languages, and all for free, but the experience is instead low-tech.