hydrationKK [haɪˋdreʃən] /haɪˈdɹeɪʃən/发音名词1补充水分、水分摄取Proper hydration is essential during long runs in hot weather.在炎热天气长跑时,适当补充水分非常重要。2保湿This cream provides all-day hydration for dry skin.这款乳霜能为干燥肌肤提供全天保湿。3水合作用化学The hydration of cement releases a large amount of heat.水泥的水合作用会释放大量热能。用这个字练口说→