例句 /

The main reason for the unwanted pregnancy among married women was contraceptive failure (73.1%), mostly the failure of rhythm and withdrawal, and the break or shedding of condom; among unmarried women, the main reason was discrete use of contraceptives (

The main reason for the unwanted pregnancy among married women was contraceptive failure (73.1%), mostly the failure of rhythm and withdrawal, and the break or shedding of condom; among unmarried women, the main reason was discrete use of contraceptives (

已婚对象非意愿妊娠的主要原因是避孕失败(73.1%),其中以安全期失败、体外排精失败和避孕套破裂或脱落为多;未婚对象非意愿妊娠的主要原因为未用或未坚持用避孕措施(55.4%),而未用措施的主要原因是认为自己不会怀孕。