■ Collected 2801 words included in NGSL (New General Service List).

■ It is said that repeated learning is the most effective way to memorize words. This vocabulary is a tool for efficient iterative learning.

■ The memorized words will not be displayed and will be restored after a certain period of time. If you still remember it, it is a system that establishes your memory by repeating the review after a longer period of time.

■ Since the frequency of displaying memorized words decreases, it is efficient because you can concentrate on learning words that you do not memorize automatically.

■ There is also a mode to judge words that are easy to forget from the learning history and learn only the words that you are not good at.

■ You can proceed with learning even in a short time of about 5 minutes.

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