lightly(副词):轻微地;轻柔地;不费力地;(对待某事)不认真地、草率地。也可表示“轻装地/少量地”(如 lightly packed)。
/ˈlaɪtli/
She tapped the door lightly.
她轻轻地敲了敲门。
Lightly brushing aside the criticism, he continued with his plan as if nothing had happened.
他轻描淡写地把批评搁在一边,仿佛什么都没发生似的,继续推进自己的计划。
lightly 来自形容词 light(轻的、轻柔的)加副词后缀 -ly(“以……方式”)。因此字面含义是“以轻的方式”,逐渐引申出“轻轻地”“不严肃地/不当回事地”等用法。