treacherously
🇺🇸
/ˈtretʃərəsli/
🇬🇧
/ˈtretʃərəsli/
adverb
R
in a way that betrays someone's trust
He treacherously revealed our secret to the enemy.
他背信弃义地将我们的秘密泄露给了敌人。
R
in a deceptively dangerous way
The path was treacherously slippery after the rain.
雨后这条路非常滑，很危险。
translation
背叛地, 危险地