protest against sth 抗议
against sth provision for/against 准备
pull at/on sth 拉,拖
ratio of sth to sth 比率
reaction to 对……的反应
reason for 原因,理由
reference to 提及,参考
regard for 对……的注意,尊重
remedy for 补救,解决
reply to sb/sth 对……的回答
reputation for 名声,名气
request for sth 要求
research on/into 对……的研究,调查
resistance to 对……的抵抗,阻力
response to 对……的回答,反应
responsibility for 责任,负责
restrainst on sb/sth 限制,约束
search for 对……的搜寻
service to 服务,贡献
similarity between ……的相似之处
skill at 技巧,熟练
solution to ……的解决办法
sorrow at/for/over 悲哀,悲痛
stress on 对……的强调