禁地
forbidden area; restricted area; (fig.) sth considered off-limits
襟弟
husband of wife's younger sister
尽地主之谊
to act as host; to do the honors
近地天体
near-Earth object (NEO)
近地轨道
low Earth orbit (LEO)
丑妻近地家中宝
an ugly wife is a treasure at home (idiom)