A 开头单词

a senior pharmacist 一位资深药师 高级药剂师

a self-conceited scholar 狂士

a secret of success [农业科学]一个成功的秘诀

a secret master plan 锦囊妙计

a second wife 后妻

a second thought 进一步考虑

a second child 二胎 第二个孩子

a second 一秒钟

a sea symphony

a sea of troubles 困难重重；无穷无尽的麻烦

a sea of fire 火海

a scratch of pen n. 签名

a scrap of paper n. 碎纸片

a scientific breakthrough [新闻学与传播学]科学突破

a school of thought 家

a scholar not bigoted 旷远之士

a sceptic's universe

a scenically beautiful place 琅嬛福地

a scene of devastation everywhere [语言学]疮痍满目

a scant supply of water [医药科学]供水不足