light的副词形式
lightly adv. 轻轻地；轻松地；容易地；不费力地；
This is not a problem we should take lightly.
这个问题我们可不能掉以轻心。
Someone was tapping lightly at the door.
有人在轻轻敲门。
He took a handkerchief from his pocket and lightly wiped his mouth.
他从口袋里拿出一块手帕，轻轻地擦了擦嘴。
If they take this game lightly they could end up with egg on their faces.
如果他们轻率地对待这场比赛，他们可能会以出洋相收场。
\"I forgot,\" said Wendy lightly.
“我忘了。”温迪轻轻地说。
He lightly touched my forehead.
他轻轻地摸了摸我的前额。