a sunk cost, ( in economics) refers to the money spent and which cannot be recovered. for example: if you spent money on a game that you are interested in or on a game equipment in the game, the money cannot be recovered. Or in many games, there are things like diamonds, tickets etc which can be increased with real money, but after the usage, the diamonds or tickets get finished. It does not only finish those things but also your money, which gets spent but cannot be recovered. in a house, after the floor gets tiled, and if you hate that type of tile, you cannot return it back. here, the money gets spent and cannot be recovered.
ok so there's this show on netflix called the who was show it's like the who was books but it a show instead, and i think the last episode is abt julius cesar
my brother watches it all the time hope this helps
"This is the second activity in the repetition strategy" indicates that the word revisit would be the best word to use to sum up the idea since repetition strategy definitely suggests revisiting. Something which is repeated is done over again so in the act of re-doing it it means it is also re-visited.