something that is very easy to understand or decide
非常に理解しやすい、または決定しやすいこと (hijou ni rikai shiyasui, mata wa kettei shiyasui koto)
"The solution to the problem was a no-brainer."
"問題の解決策は非常に簡単でした。" (Mondai no kaiketsusaku wa hijou ni kantan deshita)
a barrier separating nations ideologically or politically
to discuss something thoroughly
raining very heavily
to refuse to give up or change your position
a controversial issue that no one wants to handle
to adapt and learn quickly without prior preparation
