Analyzer
Sentence analysis
8Spans
Sentence
Span Details
精通
well-versed; thoroughly knowledgeable; expert; first ejaculation; spermarche; semenarchenoun, suru verb
は
topic markergrammar
男子
boy; young male; man; malenoun
の
possession, attribution, nominalizer, or nominal linkergrammar
第二次性徴
secondary sex characteristicnoun
の
possession, attribution, nominalizer, or nominal linkergrammar
一つ
one; for one thing; only; just; (not) even one; just (try it); a little; some kind of; one type ofnumeric, noun, adverb, no-adjective
である。
formal copulagrammar