| 词汇 | step-out-on |
| 释义 | step out on someonephrasal verb with stepverb[ I+ adv/prep ]uk /step/ us /step/-pp- USinformal If you step out on your husband, wife, or usual sexual partner, you have sexual relationships with people other than them.对（伴侣）不忠 Relationships: infidelity adulterer adulterous adultery affair bigamous bigamously cuckold extramarital extramarital affair faithless faithlessly inconstancy infidelity mess around with something on the sideidiom play around roam unfaithful unfaithfulness wander |
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