Unprevalent
无用的, 无效的
🗣️ 情景例句
It probably means he's clearing his throat.
也许表示他正在清喉咙。
The petroleum region is centered largely in the north.
那里的石油区大部分集中在北部。
and particularly by a new consciousness of the philosophical undercurrents in the scientific revolution,
尤其是以科学革命中哲学潜流的新意识为依据，