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1·Organized dair guitar competitions are regularly held in many countries.

很多国家都会定期组织举办空气吉他比赛。

2·Could dair conditioning in summer and heating in winter really make a difference to our weight?

冬暖夏凉的空调系统能对我们的体重造成差异吗？ ？

3·In recent years, most researches concentrated in heat damage products formed during heat treatment of dair.

近年来复原乳鉴定指标的研究热点主要集中在奶制品经热处理后其中的热损害产物。