adj.不可信任的，背叛的，奸诈的，有潜在危险的

The mountain trail was treacherous, with loose rocks and slippery slopes.
山间小径险恶异常，满是松动的石头和滑溜的斜坡。
He ventured into the treacherous waters of politics, not knowing the risks involved.
他涉足了充满危险的政治水域，却对其中的风险一无所知。
The treacherous weather conditions forced the flight to be canceled.
艰难的天气条件迫使航班取消。
She had to navigate through the treacherous currents of the river to reach the other side.
她必须穿越河流中的险恶激流才能到达彼岸。
A snake slithered across the path, making the walk treacherous.
一条蛇在小径上爬过，使得这段路变得危险。
The treacherous enemy betrayed his comrades in the heat of battle.
在激烈的战斗中，那个狡猾的敌人背叛了他的战友。
The treacherous背叛者 sold out their secrets for personal gain.
那个背信弃义的人为了私利出卖了他们的秘密。
The treacherous terrain made it impossible to complete the hike on time.
险恶的地形使他们无法按时完成徒步旅行。
The treacherous path was marked with warning signs, but some ignored them.
危险的小径上虽有警告标志，但仍有人视而不见。
After the treacherous climb, they were rewarded with breathtaking views.
经过艰难的攀登后，他们得到了令人惊叹的景色作为回报。