“一股”用英语怎么说？

她走过时有一股浓烈的香水味。As she went past there was a gust of strong perfume.树林上空飘浮着一股烟。There was a drift of smoke above the trees.然而，很多顾客觉得该产品有一股异味，非常难闻。However, many customers found the smell of this product distinctly off-puttin...