Yet, faced with sustained challenges like the BP oil spill, Obama has struggled to calibrate his inner clock and rouse himself to palpable intensity and action.
不过，在面对类似BP石油泄漏这样的持续性难题时，奥巴马在努力适应并唤起斗志和行动方面有些力不从心。
We've now hitched the price of corn, inextricably linked the price of corn, to the price of crude oil, and I think we can't turn the clock back, that's the way it is.
我们现在将玉米价格猛拉了上来，然后他又不可避免的影响到了原油的价格，而且我认为时光无法倒流，这是没办法的事。
It is indicated that the precise flat Plate, hollow column and clock gauge should be selected properly to satisfy actual requirements for measuring accuracy of oil well pump liners.
指出在实际生产中应根据需要选择合适精度的精密平板、空心立柱和千分表来装配，以满足抽油泵衬套测量精度要求。
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