"We do not want to see undue pressure placed on Israel.

VOA: standard.2009.08.06

They are quite distinct from each other, and you should be able to manage with that final exam without undue difficulty.

它们都各有特点,你需要在期末考之前解决所有困难。

耶鲁公开课 - 1945年后的美国小说课程节选