正规

zhèng guī regular; according to standards

买

mǎi to buy; to purchase

球

qiú ball; sphere; globe; CL:個|个[ge4]; ball game; match; CL:場|场[chang3]

app 排行

pái háng to rank; ranking; seniority (among siblings)

进入

jìn rù to enter; to join; to go into

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