重点讲解：
1. figure out 想出；理解；弄清；
I can't figure out how to do this.
我弄不懂怎样做这件事y2L02RoCaR](p]9。
2. all over 到处；遍及；
We have friends all over the world.
我们的朋友遍天下1#CYhQtWDGD@。
3. wipe out 摧毁；毁灭；使灭绝；
Last year's profits were virtually wiped out.
去年的利润几乎全都赔光了in=k)5lGsYR1PFq。
4. head off 阻止，防止（尤指不愉快的事）发生；
He would ask Congress to intervene and head off a strike.
他将要求国会进行干预，防止发生罢工NHGx1lOQPq0b%_T。