During the second half of the 20th century, grain prices rose dramatically several times.

在20世纪下半叶，粮食价格经历了几次大幅上涨。

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In 1971 she was saved for the nation as a unique and historic reminder of Britain's naval heritage in the first half of the 20th century.

1971年，这艘船被保存下来，作为20世纪上半叶英国海军历史遗产的独一无二的历史纪念物。

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In the second half of the 20th century, buildings and landscape became disconnected.

20世纪下半叶，建筑脱离了景观。

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Detroit, Akron and Rochester were boomtowns in the first half of the 20th century.

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Inside is a jumbled history of the last half of the 20th Century.

BBC: Ghosts of Budapest��s past

Christians lived through the second half of the 20th century, and the first years of the 21st.

WSJ: Open Mic Night at MSNBC