The undersea search is one of the most expensive in aviation history, costing about $150m to date.

此次海底搜索是航空史上最昂贵的搜寻行动之一，迄今已耗资约1.5亿美元。

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The undersea search is one of the most expensive in aviation history, costing about $150m to date.

此次海底搜索是航空史上最昂贵的搜寻行动之一，迄今已耗资约1.5亿美元。

youdao