生效日期 / Effective date: 2026-08-07
TypeLoop 是独立的学习辅助工具，与 Duolingo 官方没有隶属、授权或合作关系。
TypeLoop is an independent study aid and is not affiliated with, authorized by, or endorsed by Duolingo.
速度、完成度和练习建议仅用于学习反馈，不代表官方 DET 分数，也不保证考试结果。
Speed, completion scores, and recommendations are study feedback only. They are not official DET scores and do not guarantee exam results.
请使用你有权使用的邮箱并妥善保管账户密码。
Use an email address you control and keep your account password secure.
服务可能调整功能、数据结构或可用性。重要数据请定期使用导出功能自行备份。
The service may change features, data formats, or availability. Export important data periodically as your own backup.