20.药剂师;化学家chemist

19.稀有的;罕见的rare

18.邮箱mailbox

17.向……咨询;查阅consult

16.压力pressure

15.统计资料statistics

14.费用;服务费;酬金fee

13.献身;忠心 n. devotion

12.祝贺;庆祝 v. congratulate

11.妥协;和解;折衷compromise