protection for sb 保护
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
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