ground 
英 [ɡraʊnd]  美 [graʊnd] 
n. 地面；土地；场地；立场，观点；范围，领域；理由；庭院；地线；地方；优势

v. （使）搁浅；（使）停飞；以…为根据；禁足；grind的过去式和过去分词；研磨

adj. 磨碎的

例句：
Four Marines on board and one on the ground were injured. 

船上4名和地上1名海军陆战队士兵受了伤。

He picked his coat up from the ground. 

他从地上捡起上衣。

They spend their lives below ground sucking sap from roots. 

它们生活在地下，靠吸食根液为生。

Nuclear testing above ground has been banned. 

地上核试验已经被禁止。