on the sly
US /ɑn ðə slaɪ/
UK /ɒn ðə slaɪ/
成语
偷偷地, 暗中, 私下里
doing something secretly or furtively
示例:
•
He was eating cookies on the sly when his mom wasn't looking.
他趁妈妈不注意的时候偷偷地吃饼干。
•
They were meeting on the sly to plan the surprise party.
他们偷偷地见面，计划惊喜派对。
相关词: