sequentials按期: on time; on schedule口服避孕丸: pill; oral contraception; or ...口服避孕丸: the pill服避孕丸: take birth control pills后服避孕丸。: morning-after pill下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:按期口服避孕丸,即可在微信中查询翻译