adj.胁迫的,险恶的,凶兆的,（天气等）要变坏的 v.恐吓,威胁,预示（某事）(threaten的现在分词)
"This ain't no affair of yours, boy!" McClosky said threateningly.
“小子，这不关你的事！”麦克洛斯基威胁道。
The whip cracked threateningly.
鞭子挥得噼啪响得惊人.
She picked up a metal bar and waved it threateningly.
她捡起一根金属棍，威胁地挥了挥。