rapids

音标发音

Police recovered their inflatable boat east of the rapids the next day.
第二天，警察在急流東側發現他們仍未漏氣的皮劃艇。
Actually, in my analogy, the rapids are the periods of marketplace transformation.
事實上，按照我的類比，“急流”就是市場轉變時期。
The height of the fall is so great that the stream of water atomizes into a cloud of mist, then trickles back together at the bottom of the plunge and continues on through a cascading run of rapids.
瀑佈是下降的高度非常之大，以致使部分流水噴成霧狀成爲模糊不清的雲朵，然後滙成細流與大瀑佈一起跌到山下的底部，竝繼續穿越幾個像小瀑佈那樣的飛奔急流。

Maya Lin's "Ecliptic" outdoor area in Grand Rapids,Michigan features water in its three states: liquid,gas and solid.
All of the boats had to pass through an area called the White Horse Rapids.
It provided a calm, safe route west next to the river, which is nearly dry upstream part of the year but whose rapids rage in springtime.

But first, in Cedar Rapids, Iowa today, John McCain and Sarah Palin did not mince words.
NPR: With Economy As Focus, Candidates Hit Trail

a dangerous part of a river that flows very fast because it is steep and sometimes narrow

Rapids are a section of a river where the water moves very fast, often over rocks.

湍流
Some air-to-ground missile armament system uses the guidance mode for the laser semiactive guidance,the laser light beam transmission receives each kind of noise and the atmospheric rapids influence.
某型空地導彈武器系統採用的制導方式爲激光半主動制導,激光光束的傳輸受到各種噪聲和大氣湍流的影響。
地球科學
急灘
急流
險灘