"The Resistance sabotaged railroad operations during the war"
"The river was caving the banks"
undermine是什么意思
undermost是什么意思
underneath是什么意思
undernourish是什么意思
undernourished是什么意思
undernourishment是什么意思
undernutrition是什么意思
underofficer是什么意思
underpaid是什么意思
underpaint是什么意思