threatenv.威胁;恐吓;似将发生
threaten seriously严重威胁
threaten the border边境受到威胁
Threatened apoplexy中风先兆证
threaten assessment威胁评估
threatening message恐吓信函
threatened monopoly技术创新
threaten sinisterly凶恶地扬言
threatening letters恐吓信
threatened abortionn.先兆流产
threatening factors威胁因子