經(jīng)過(guò)更為仔細(xì)的探察，他發(fā)現(xiàn)這些巖石含金。He discovered, on closer inspection, that the rocks contained gold.幾隊(duì)獄警一直都在探察暴亂者的防衛(wèi)情況。Squads of prison officers have been probing the rioters' defences.去探察活火山是非常危險(xiǎn)的.It is most risky to go and exa...