Immersion in cold water resulted in rapid loss of heat.

浸泡在冷水中导致热量迅速散失。

《牛津词典》

The beans in the head one night to wash clean, with cold water immersion.

先将生豆在头一天晚上洗洁净，用冷水浸泡一下。

youdao

Deaths associated with immersion in cold water have been attributed to hypothermia, since many of those who die are judged to be competent swimmers.

BBC: Cold water increases drowning risk