プログレッシブ和英中辞典(第３版)の解説
まんねん【万年】
I 〔1万年〕ten thousand years
II 〔多くの年月，永久〕
- 彼は万年助教授で終わりそうだ
He'll be an associate professor forever.／He'll never be promoted to professor.
万年床｜a permanently unmade bed
- 彼はいつも万年床だ
He never bothers to put away his bedding during the day.
万年塀｜a concrete-slab wall
万年雪｜perpetual [eternal] snow