underscored怎么读？

He heavily underscored his note to Shelley.他在给谢利的便条内容下面重重地画了线。Such extreme weather underscored the need to develop accurate long - range forecasts.这种极端的天气情况强化了发展准确的 长期 天气预报的需要.The anticipation strategy always been unders...

v.划线于…下，强调( underscore的过去式和过去分词 )...