penultimate
adj[attrib 作定语]
next to and before the last one; last but one 倒数第二的
the penultimate letter of a word 一词的倒数第二个字母
the penultimate day of the month 月底的前一日.
🗣️ 情景例句
It's mostly young people who take part.
参加活动的绝大多数是年青人。
A good teacher should always avoid embarrassing his students.