(informal)feel frustrated, helpless, and trapped
(非正式)感到无能为力
his job soon had him climbing the walls.
他的工作很快使他感到无能为力。
be facing a very difficult task
面临挑战
withdraw from a position taken up in argument or negotiation
（争执、谈判中）退让，让步，屈服
he was forced to climb down over the central package in the bill.
他被迫在议案的中心一揽子提议上作出让步。