重点讲解：
1. hunt for 搜寻；寻找；
A forensic team was hunting for clues.
法医小组正在寻找线索I*6ceT0O)8BA2&Jb]5。
2. screen out 筛除；
The company screened out applicants motivated only by money.
该公司剔除了那些一心向钱看的申请者IGCrvEazijh。
3. account for 解释；
Now, the gene they discovered today doesn't account for all those cases.
不过，他们现在发现的基因无法解释所有的病例!64-jW4(Lbp3dcLo4QwM。
4. right now 现在；此时此刻；
Right now, I've got other problems that are pressing on me.
现在又有其他一些问题困扰着我)+Jt5.MngJ6。