"act or practice of exercising or practicing before an activity," 1915; earlier in literal sense, "a heating" (of something), 1878, from verbal phrase warm up, which is from 1868 in the sense "exercise before an activity." Earlier in reference to heating food (1848), and earliest (c. 1400), figuratively, of persons. In reference to appliances, motors, etc., attested from 1947.
权威例句
1. Serve the cake warm or at room temperature, cut in squares.
等蛋糕温热或凉至室温时切成四方块端上桌。
2. Warm weather has attracted the flat fish close to shore.
煦暖的气候将比目鱼引到了近海。
3. We sat round the fire to keep ourselves warm.
我们围坐在火边取暖。
4. The children are very tactile with warm, loving natures.
小孩子说话时喜欢用上热烈、表达喜爱的肢体触碰。
5. In warm weather, you should wear clothing that is cool and comfortable.