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.
下一步該怎么做,我完全沒譜 。
as to至于;關于
How can faculty improve their teaching so as to encourage creativity?
教師們如何才能改進教學以激發創造性呢?
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扯開
Sometimes i wish i had a garden to tear apart.
有時我還希望能有個花園來摧殘一下呢 。