mildly
adverb uk/ˈmaɪld.li/ us/ˈmaɪld.li/
略微地
slightly
I was mildly surprised to see him here. 在这里看到他令我略感惊讶。
温和地
in a gentle way
"I think you've made a mistake," he said mildly. “我认为你犯个了错误。”他温和地说。
Idiom
to put it mildlyidiom 保守地说;说得好听（或委婉）一点
used for saying that something is much more extreme than your words suggest
It has been a remarkable day, to put it mildly. 说得委婉一点，这是不寻常的一天。