烟囱当时冒出一缕烟。A trail of 一串,一股,一缕。区分:a series of 和a trail of: 两者都有“一连串的”的意思。a series of是抽象的, As a result of a series of European wars, Florida was ceded to England.一系列欧洲战事的结果是佛罗里达被割让给英国。a trail of 是具体的,如:a trail of blood [SPO]
A trail of smoke came out of the chimney.