working very hard without enough rest
休息が足りずに一生懸命働く (kyūsoku ga tarizu ni isshōkenmei hataraku)
"He is burning the candle at both ends with two jobs."
"彼は二つの仕事をしており、働きすぎです。" (Kare wa futatsu no shigoto o shite ori, hatarakisugi desu.)
a relationship full of arguments and conflicts
To skip a class without permission
Something that is outdated or no longer interesting
to just barely manage to do something
an unrealistic or impossible dream
to praise or congratulate someone for doing something well
