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
He was ill at ease with people whom he didn't understand.
他和不熟悉的人在一起感到不自在。
Do you have any other flights?
你们还有别的班机吗？
Yes.please be careful when you send it out.
是的，出货时请小心些。