period
【词性】：n． 【释义】： 周期，期；月经期 around the periods月经前后 gestation period怀孕期 in the menstrual period正值行经期间 latent period潜伏期 period of gestation妊娠期 period of incubation潜伏期 period of pregnancy怀孕期 safe period(避孕)安全期 How are your periods regular?你的月经正常吗? Sometimes my periods come ahead of time and sometimes behind．我的月经有时提前，有时错后。 The lumps turn firm before the periods．月经之前肿块就变硬。 What quantity is discharged in each period?每次月经经量怎么样? |