app 超级

chāo jí super-; ultra-; hyper-

签名

qiān míng to sign (one's name with a pen etc); to autograph; signature

长期

cháng qī long term; long time; long range (of a forecast)

合作

hé zuò to cooperate; to collaborate; to work together; cooperation; CL:個|个[ge4]

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