With the going deep in understanding of Ecology, more and more eco-methods were emerged in bird strike control and prevention.

随着对生态学的认识逐步加深，目前国际上出现了越来越多的以生态学手段防治机场周围鸟害的方法。

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"There were a few things that were disconcerting, " he said, not least the row about security and a possible border control strike.

BBC: Mitt Romney's Olympic mishap

In the case of the air traffic control strike, it endangered lives.

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Cross-Channel ferry passengers face major travel disruption over Easter due to a strike by French port control officers in a dispute over pay.

BBC: P&O ferry