AnalyzerSentence analysis4SpansSentence密かに協力する1000 character limitAnalyzeSentence密ひそかに協きょう力りょくするSpan Details密ひそかsecret; private; surreptitiousna-adjectiveにadverbial form after a na-adjectivegrammar協きょう力りょくcooperation; collaboration; help; supportnoun, suru verbするlight/support verb with a noun or noun-like phrasegrammar
