to spend less money due to financial difficulties
経済的な困難のため、出費を減らす
"After losing his job, he had to tighten his belt."
"仕事を失った後、彼はベルトを締めなければならなかった。"
to introduce or create new concepts or methods
using influence to get something done
to distribute something
a secret agreement made by powerful people
to use something until it becomes unusable
to make progress or advance
