But how can it be launched quickly on a stormy night at low tide when the sea has retreated down a steep bank of shingle and out across several kilometres of boggy sand?是什么意思_But how can it be launched quickly on a stormy night at low tide when the sea has retreated down a steep bank of shingle and out across several kilometres of boggy sand?在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句