问题很明显，这一切究竟只是一种周期性上升，还是意味着德国已经从深层的结构问题中起死回生？

The obvious question iswhether all this is merely a cyclical upswing or whether Germany hasundergone some deeper, structural change.

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TETRA公司通过油田和油井的试验业务，将资金以周期性上升方式投向了油田和气田的钻探周期的运营。

Through its fuilds and its well testing business, TETRA capitalizes on cyclical upturns in the oil and gas drilling cycle.

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各国在对待移民态度上变得这么气量狭小不足为奇，这是周期性经济萧条和慢慢上升的富国边境压力协同作用的结果。

This illiberal turn in attitudes to migration is no surprise. It is the result of cyclical economic gloom combined with a secular rise in pressure on rich countries' borders.

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