Ebooks & courses

Ebooks

Import an .epub or .txt into the Library (sign-in required). It opens in a paged reader:

• A table of contents drawer jumps between chapters; reader settings change theme (light, parchment, dark), font size and layout.
• Select-to-translate: select any word or sentence for the translation panel; mouse and touch both work.
• Your last position and bookmarks are restored.

TXT files are decoded as UTF-8, UTF-16 or GB18030; chapter markers such as “Chapter N” or “第X章” become the table of contents, and files without markers are split into equal-sized sections.

Read aloud and shadow

The reader can read sentence by sentence (TTS) and highlights the sentence being read. Keys while reading:

Action	Key
Play / pause	Space
Previous / next sentence	A / D
Slower / faster	Shift+, / .
Toggle shadowing	E
Record / stop	R
Replay my take	G
Pronunciation score	V
Pitch contour comparison	P

Turn pages with ← / →.

Courses

Courses are ordered learning paths:

Course
├── Chapter 1: Greetings
│   ├── Section 1.1: Saying hello
│   └── Section 1.2: Introducing yourself
└── Chapter 2: …

1. Browse Library → Courses, open a course and press Join.
2. Each section has example lines (listen, shadow), pronunciation score, pitch contour, and multiple-choice / fill-in quizzes.
3. Use the drawers to jump between sections and chapters; progress is tracked per chapter.

Section shortcuts: Space plays the example, R records, Esc cancels, G replays, V scores.

Tip

Go in order. Record the same example 2–3 times before reading the pitch comparison — it’s most useful then.