报告表达了对失业率居高不下的忧虑。

The report expressed concern over continuing high unemployment.

《牛津词典》

居高不下的税率已经成为经济复苏的阻碍物。

The higher rates have been a hindrance to economic recovery.

《柯林斯英汉双解大词典》

居高不下的忧虑将会难以处理。

Some of the concerns raised will be hard to deal with.

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