缺点：没有64位版本提供，没有非英语语言外的开箱即用的支持；缺乏规划发布。
Cons: no 64-bit edition offered; no out-of-the-box support for non-English languages; lacks release planning.
Busuu支持众多语言，包括英语，法语，德语，西班牙语，意大利语和葡萄牙语。
Busuu supports several languages, including English, French, German, Spanish, Italian, and Portuguese.
语言检查器工具(目前支持英语，德语，荷兰语，波兰语等)。
A language checker tool (current support for English, German, Polish, Dutch, etc.).
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