- Dictionary data was brushed up

- Dictionary data was brushed up
- Now possible to get update notification
- Professional comments for grammar

- Increased a number of word items and sample expressions
- Added a '?' button to indicate instruction manuals

- Increased word items.
- Enriched sample expressions.

- Fortified search engine.
- Increased word items.
- Enriched sample expressions.
- Modified layouts.
- Fixed some bugs.