treacherous
['tretʃərəs]
adj.背信弃义的, 背叛的, 不可靠的, 危险的
例句与用法：
He is treacherous to his friends.
他对他的朋友不忠。
You treacherous cur!
你这个背信弃义的家伙！
He thinks that she is his friend, but she is treacherous.
他认为她是他的朋友，但她是个奸诈的人。
My memory is treacherous.
我的记忆靠不住。
词形变化：
副词: treacherously | 名词: treacherousness |
详细释义：
a.
1. 背叛的; 不忠的; 奸诈的
He was cruel, treacherous and unscrupulous.
他残忍、奸诈、不择手段。
2. 不牢靠的; 危险的; 变化莫测的
My memory is treacherous.
我的记忆不可靠了。