ビリングズはいらんほう
Noun
1.
Billings ovulation method
ANIMATION
Stroke 0 / 42
Speed1.0x
Speed1.0x
Kanji that make up this word
Track your mastery
Kumi's KMT system will track your mastery across kanji, vocabulary, grammar, and reading. Create an account to join the waitlist for 220,000+ concepts.