turbulence
n[U]
1 unrest or disturbance 动荡; 混乱; 骚乱
political, social, religious, etc turbulence 政治的、 社会的、 宗教的...骚乱
(fig 比喻) emotions in a state of turbulence 纷乱的情绪.
2 violent or uneven movement of air or water 猛烈的或不稳定的气流或水流
We experienced some slight turbulence flying over the Atlantic. 我们飞越大西洋时, 遇到一点不稳定的气流.