treacherous
🇺🇸
/ˈtretʃərəs/
🇬🇧
/ˈtretʃərəs/
Someone who is not loyal and may harm you.
He was weak, cowardly, and treacherous.
他既懦弱又奸詐。
A situation that is unsafe, even if it looks safe.
The ice on the roads made driving conditions treacherous.
路面上的冰使駕駛條件變得危險。