treacherous
/ˈtretʃərəs/adjective
1- guilty of or involving betrayal or deception不可靠的, 背叛的, 奸诈的：
a treacherous Gestapo agent
一个奸诈的盖世太保
memory is particularly treacherous.
记忆特别不可靠。
1.1
- (of ground, water, conditions, etc.) hazardous because of presenting hidden or unpredictable dangers（地面、水流、情况等）危险的; 变化莫测的：
a holidaymaker was swept away by treacherous currents.
一个度假者被诡秘的水流卷走了。
派生词
treacherously
adverbtreacherousness
noun词源
Middle English （in the sense 'involving betrayal'）： from Old French trecherous, from trecheor 'a cheat'， from trechier 'to cheat'.