1.round the clock 连续一整天，昼夜不停

Rescue services have been working round the clock to free stranded motorists.

救援工作一直在昼夜不停地进行着，来解救被困的开车的人们jD]KI7[-FyrV3。

2.duty 关税

To impose a heavy duty on the imports of steel is unreasonable.

对钢材进口征收高关税是无道理的9q-_(dHb(pZu(T^4|5G。

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