safe sex
(organic chemistry) Any of a group of phenolic chalconoids
(medicine) Initialism of reason for encounter. (the symptom or complaint that causes a patient to seek medical advice)
Sexual activity engaged in by people who have taken precautions to protect themselves against sexually transmitted diseases (STDs).
(mineralogy) A trigonal-rhombohedral green mineral containing aluminum, hydrogen, iron, oxygen, sodium, and sulfur.
保健教育担当者は若年層に、性感染症を防ぐために予防策を講じた性行為を行い、定期的に検査を受けるよう勧めた。
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