您要查找的是不是：
- retroactive conversion 追溯转换
- Has undergone a religious conversion. 经历一次宗教信仰的转变。
- A proposition obtained by conversion. 逆命题通过换位得到的命题
- Conversion to gas central heating will save you a lot of money. 改用煤气集中供暖将节省大笔开支。
- This will be retroactive agreement. 这些是追溯以往的合约。
- The new law was made retroactive to 1 January. 新法令生效日期可追溯到1 月1 日.
- He laughed to conver his nervousness. 用笑掩饰。
- They get a pay rise retroactive to last January. 他们补发了去年一月起的加薪。
- Conversion of your heating system from coal to gas will be costly. 你把暖气系统由烧煤改造成烧瓦斯会花好多钱。
- And what does he mean by retroactive? 问：追溯是什么意思呢？
- Three Practical Situational Conver sations. 个实战经典对话）。
- Retroactive to when they start to work for me. 追溯到从他们开始为我工作的时候吗?
- May I have a convers :) ation with you? 我可以跟你谈一下吗？
- Coding Workshop Ringto...Mobile Ringtone Conver... 音乐剪切工具Ringtone C...
- They receive a pay rise retroactive to last January. 他获得从去年1月份开始补发的增加工资。
- Conversion of one substance into another. 变质从一种物质向另一种物质的转化
- The supposed conversion of base metals into gold or silver in alchemy. 转变在炼金术中假想的从贱金属到金或银的转变
- They received a pay risen retroactive to last January . 他获得从去年1月份开始补发的增加工资。
- This conversion was not out of his own idea. 这个转变不是出于他的本意。
- To transform(a proposition) by conversion. 转换通过换位改变（一个命题）
