yuèjīng zhōuqí

== Mandarin == === Romanization === yuèjīng zhōuqí (Zhuyin ㄩㄝˋ ㄐㄧㄥ ㄓㄡ ㄑㄧˊ) Hanyu Pinyin reading of 月經週期 / 月经周期 Hanyu Pinyin reading of 月經周期 / 月经周期