opt 目录

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

干什么

gàn shén me what are you doing?; what's he up to?

用

yòng to use; to employ; to have to; to eat or drink; expense or outlay; usefulness; hence; therefore

的

de of; ~'s (possessive particle); (used after an attribute); (used to form a nominal expression); (used at the end of a declarative sentence for emphasis)

dí really and truly

dì aim; clear

dī see 的士[di1 shi4]

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