treacherously

/ˈtretʃərəsli/ (bre, ipa) · /ˈtretʃərəsli/ (ame, ipa)

treacherously — 副詞

1. Describing weather, roads, or terrain as deceptively unsafe — appearing harmless

1.副詞B2
釋義

危險地

指天氣、道路或地形看似安全但極度危險

Describing weather, roads, or terrain as deceptively unsafe — appearing harmless while hiding serious risk to anyone who uses them.

例句

The mountain road was treacherously icy, so Lara drove at walking speed.

山路結冰，危險萬分，Lara 只能以步行的速度開車。

modifies adjective: treacherously icy

The currents near the shore can be treacherously strong even for experienced swimmers.

岸邊的海流可能凶險異常，連經驗豐富的泳者都難以招架。

modifies adjective: treacherously strong

同義詞
  • dangerously

    more general; does not carry the 'deceptively unsafe' nuance

  • precariously

    focuses on instability rather than hidden danger

用法筆記

Commonly modifies adjectives describing the condition of terrain, roads, or water (icy, steep, strong, slippery). The sense highlights that the danger is not obvious at first glance.

2. Acting against a person who has placed their trust in you, by secretly harming,

2.副詞B2
釋義

背叛地

以欺騙或背信的方式傷害信任你的人

Acting against a person who has placed their trust in you, by secretly harming, cheating, or working against their interests.

例句

Tamar discovered that her colleague had acted treacherously by leaking private emails to the manager.

Tamar 發現她的同事背叛了她，把她的私人電郵洩露給主管。

collocation: act treacherously

The general accused the officer of behaving treacherously by passing information to the enemy.

將軍指控那名軍官不忠，將情報傳遞給敵人。

collocation: behave treacherously

同義詞
反義詞

用法筆記

Formal register; more common in written narratives (news, historical accounts, fiction) than in everyday conversation about personal disputes.

常見錯誤

❌He treacherously betrayed his friend.
✅He acted treacherously toward his friend.
💡'treacherously' already implies betrayal, so pairing it with 'betrayed' is redundant.