1. protect oneself from 保护自己免受……的伤害
To protect themselves from rampant crime and racketeering, the oligarchs tried to privatise parts of the KGB.
为了使自己免于暴力犯罪和敲诈勒索的伤害，寡头们试图使克格勃的一些部分私有化[c+GPk[[J;#。

2. risk for ……的几率/风险
Anyone's risk for cancer depends on many factors, from genetic makeup to the amount and length of time of an exposure.
一个人得癌症的几率有多大取决于很多要素，与基因构成和接触致癌物质的几和时间长短等都有关系Q^=MdWfpl81efw]。

3. the story changes 就另当别论了
Yet once mom and baby are discharged from the hospital, the story changes.
然而一旦母亲和孩子出院，那就另当别论了C@!VT)vLbQcvDcXd4k。

4. be lousy for 很糟糕
The land, great for farming, is lousy for drilling.
这片土地适合农耕，但不适合钻探Jd(n@I9Q]w^[#*Z。