1. A spokeswoman from NBN said she was at a loss as to why the birds had become partial to chewing the cables.
at a loss不知所措
I was at a loss for what to do next.
下一步该怎么做,我完全没谱 。
as to至于;关于
How can faculty improve their teaching so as to encourage creativity?
教师们如何才能改进教学以激发创造性呢?
2.She told reporters: "They are constantly sharpening their beaks and as a result will attack and tear apart anything they come across.
tear apart扯开
Sometimes i wish i had a garden to tear apart.
有时我还希望能有个花园来摧残一下呢 。