an issue that is constantly debated and used for political gain
絶えず議論され、政治的利益のために使われる問題 (taezu giron sare, seijiteki rieki no tame ni tsukawareru mondai)
"The issue of immigration has become a political football, with both parties using it to score points."
"移民問題は政治的フットボールとなり、両党はそれをポイントを得るために利用している。" (Imin mondai wa **seijiteki futtobōru** to nari, ryōtō wa sore o pointo o eru tame ni riyō shite iru.)
to not show your emotions in difficult situations
something boringly repetitive
a small but essential part of a large system
to have control or advantage over someone
to make a very serious promise that something is true
a sudden and brilliant idea
