Try HanyuGuide's novel active Spaced Repetition System.
Audio is licensed under Creative Commons Attribution-ShareAlike 4.0 International License, building on the work of CC-CEDICT.
Sign in to save this word to your study lists.
kryptonite
(slang) to put in long hours, typically late into the night, playing a video game (rather than pay for power-ups)
to make an in-app purchase in a game