??? 情景例句
There's been a car accident, please call the police.
這發生了車禍，請快報警。
When all men speak no man hears.
人人都講話，無人去聽它。
and we know something of the great variety of the sea bed's topography.
而且我們對海底地形的千變萬化也有了一定的了解。