1. Her boyfriend is full of hot air.
    她的男朋友满口大话。

1. 热风：红外加热风(Hot air)回流焊:这类回流焊炉是在IR炉的基础上加上热风使炉内温度更均匀,单纯使用红外辐射加热时,人们发现在同样的加热环境内,不同材料及颜色吸收热量是不同的,即(1)式中Q值是不同的,因而引起的温升ΔT也不同,

2. hot air的解释

2. 热空气：碳权的供给主要来自俄罗斯与东欧的热空气(hot air),未来二气化碳的盘查与查证、产品效能、总量管制...等国际上的机制也在逐渐建立中. 新科技仍是我们最倚仗的. 碳的捕捉和储存(CCS- Carbon Capture and Storage) 的计划,

3. hot air

3. 吹牛：可能微软真的没有吹牛(hot air)吧. 谷歌开发者大会(Google developer conference)充满了产品的发布消息,但是我们最为激动的一个产品发布消息是软件工程师Moishe Lettvin利用自己20%时间做的一个项目.

1. 空话;大话;夸夸其谈
    If you say that someone''s claims or promises are just hot air, you are criticizing them because they are made mainly to impress people and have no real value or meaning.

hot air的解释

    e.g. His justification for the merger was just hot air...
           他提出的合并理由只是空话连篇。
    e.g. I''d come to the conclusion by then that he was all hot air.
           我那时已得出结论，他只会夸夸其谈。

1. loud and confused and empty talk

    e.g. mere rhetoric

    Synonym: palaverempty wordsempty talkrhetoric

2. air that has been heated and tends to rise