heat意思
n.热，热度，高温; 热烈，激烈; （身体的）发烧，发热; 发情;
vt.&vi.使温暖，使热; 激发…的感情，使兴奋;
例句
He could feel the heat of the sun on his back.
他能感觉到太阳照射在背上的热度。
These plants need heat and humidity to grow well.
这些植物在高温潮湿的环境中才能生长得旺盛。
Immersion in cold water resulted in rapid loss of heat.
浸泡在冷水中导致热量迅速散失。
