On 2026-11-15 06:00, our domain will change. After that, opening the current address will automatically take you to the new domain. If you use the site without logging in, settings saved in your browser may not carry over. Sign up to save your study history. Sign up
Your email address is not verified. Verify now
New feature

We fixed a bug in "Idioms & proverbs".

We fixed a bug that occurred yesterday (November 11, 2026) when running the "Idioms & proverbs" quiz on a smartphone. The answer buttons did not appear, so you could not move on to the next question.