主

zhǔ owner; master; host; individual or party concerned; God; Lord; main; to indicate or signify; trump card (in card games)

程序

chéng xù procedures; sequence; order; computer program

目录

mù lù catalog; table of contents; directory (on computer hard drive); list; contents

在

zài (located) at; (to be) in; to exist; in the middle of doing sth; (indicating an action in progress)

哪

nǎ how; which

na (particle equivalent to 啊 after noun ending in -n)

něi which? (interrogative, followed by classifier or numeral-classifier)

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