Ⅰ名词 1.(险恶不容易通过的地方) a place difficult of access; narrow pass; defile 短语和例子 天险 natural barrier; 无险可守 have no tenable defence position; be strategically indefensible2.(危险) danger; peril; risk 短语和例子 冒险 run a risk; 脱险 be out of danger; 遇险 meet with danger; 海洋上的风险 the perils of the oceanⅡ形容词 1.(危险的) dangerous; risky 短语和例子 干险事 do sth. at the risk of one's life; 好险哪! that was a near thing!2.(狠毒) sinister; vicious; venomous 短语和例子 阴险 sinisterⅢ副词 (险些) by a hair's breadth; by inches; nearly 短语和例子 险遭不幸 come within an ace of death