lo·cus
noun/ˈləʊkəs/
/ˈləʊkəs/
(plural loci
(specialist or formal)/ˈləʊkaɪ/, /ˈləʊsaɪ/
/ˈləʊkaɪ/, /ˈləʊsaɪ/
)- the exact place where something happens or that is thought to be the centre of something
（某事发生的）确切地点；（被视为某物的）中心，核心 Word Originearly 18th cent.: from Latin, ‘place’.