a participle (= "-ing" or "-ed" form of a verb) intended to modify (= refer to or describe) a noun that is not in the text, so it seems to modify another noun

In the sentence "Arriving home, the door was open", the dangling participle makes it sound as though the door has arrived home. 在“Arriving home, the door was open”这个句子中，悬垂分词（arriving）使得这个句子听起来好像是说门已经到家了。