如何

rú hé how; what way; what

设置

shè zhì to set up; to install

一级

yī jí first class; category A

目录

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

二级

èr jí grade 2; second class; category B

目录

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

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