If you describe someone as treacherous, you mean that they are likely to betray you and cannot be trusted.
例句
He publicly left the party and denounced its treacherous leaders...他公開脫離該黨，并譴責(zé)該黨領(lǐng)袖背信棄義。The President spoke of the treacherous intentions of the enemy.總統(tǒng)談及了敵人的奸詐用心。
ADJ-GRADED
危險(xiǎn)的;變化無常的
If you say that something is treacherous, you mean that it is very dangerous and unpredictable.
例句
The current of the river is fast flowing and treacherous...這條河水流湍急，變幻莫測(cè)。They made the treacherous journey across stormy seas in rotten boats.他們乘著破舊的小船穿越風(fēng)大浪急的海面，完成了這次危險(xiǎn)之旅。
英漢詞典釋義
adj.
騙人的；不忠的；奸詐的；不可信的；靠不住的
a treacherous ally不忠的盟友
背叛的；背信棄義的
I hear that the old man has broken with that treacherous son of his.聽說老漢已跟他那個(gè)逆子斷絕了關(guān)系。
危險(xiǎn)的；兇險(xiǎn)的
The frozen snow was treacherous to walk on.在凍雪上行走有潛在危險(xiǎn)。The surface water made the road treacherous for drivers.路面的積水對(duì)駕車者構(gòu)成危險(xiǎn)。The oil made the ground slippery and treacherous to walk on.油使地面發(fā)滑，走在上面很危險(xiǎn)。She was swept away by the treacherous currents.她給兇險(xiǎn)的激流卷走了。