sourness (quality or condition) / (chemistry) acid

big; great

what

anything; whatever one likes

any

a hairless caterpillar / (figuratively) an angry person (from the way that a person may puff up when angry and go red and swollen in the face, similar to the defense behaviors of some caterpillars)

脅迫: threat / 強迫: pressure, compulsion

脅迫: to threaten / 強迫: to compel

南京: a southern capital / 難境: difficult situation, difficult circumstances

共産: communism / 協賛: collaboration by companies or groups on events or projects