poser
🇺🇸
/ˈpəʊzər/
🇬🇧
/ˈpəʊzə(r)/
A challenging question or problem.
The math test had a real poser as the last question.
数学のテストの最後の問題は本当に難しいものでした。
A person who pretends to be something they're not to impress others.
He's such a poser, always showing off his fake designer clothes.
彼は本当にポーズをとる人で、いつも偽のデザイナー服を見せびらかしています。