dog days
dog-days的词性：
pl.n.（复数名词）
1. The hot, sultry period of summer between early July and early September.
三伏天：介于七月上和九月初的闷热炎夏
2. A period of stagnation.
淡季：不景气的时期
dog-days的词源：
3. Translation of Late Latin di?s canocul3r?s [Dog Star days (so called because the Dog Star (Sirius) rises and sets with the sun during this time)]
后期拉丁语 di?s canocul3r?s的翻译 [天狼星日（这么说是因为天狼星在这期间跟太阳一块升落）]
4. Latin di?s [days]
拉丁语 di?s [日期]
5. Late Latin canocul3ris [of the Dog Star]
后期拉丁语 canocul3ris [天狼星的]