at length

phr

• ① 终于(★比at last更为正式)
  • At length she arrived, half an hour late.她终于来到,晚了半个钟头。

• ② 充分地;详细地
  • He told us about his trip to India at length.他详细地告诉我们他的印度之行。

• ③ 长时间地