Undercurrents
n. 潜流, 暗流( undercurrent的复数形式 ); 潜在的感情、影响或倾向（尤指与表面相反的）
🗣️ 情景例句
They're both very good buys.
这两栋都是价格便宜的。
I ought to take her home.
我应该送她回家。
You must always return your library book on time!
你必须按时归还图书馆的书！