Gb	Eng
那位革命者为避免被捕在地下躲藏了几个星期。	The revolutionist eluded capture for weeks by hiding underground.
鼹鼠在地下挖掘（路）.	The mole bored (its way) underground.
这些放射性废物应该放在密封的箱子里深埋在地下。	The radioactive waste should be buried deeply under the ground in sealed box.