vents n.(气体、液体等进出的)孔、口( vent的名词复数 );(鸟、鱼、爬行动物或小哺乳动物的)肛门;大衣等的)衩口;开衩v.表达,发泄(感情,尤指愤怒)( vent的第三人称单数 )VentsA vent is a slit in the bottom rear (the "tail") of the jacket. Originally, vents were a sporting option, designed to make riding easier, so are traditional on hacking jackets, formal coats such as a morning coat, and, for practicality, overcoats. Today there are three styles of venting: the single-vented style (with one vent at the centre); the ventless style; and the double-vented style (one vent on each side). Vents are convenient, particularly when using a pocket or sitting down, to improve the hang of the jacket,[29] so are now used on most jackets. Ventless jackets are associated with Italian tailoring, while the double-vented style is typically British.[5] (This is not the case with all types of jackets. For instance, dinner jackets traditionally take no vents.)