哪

nǎ how; which

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

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

有

yǒu to have; there is; there are; to exist; to be

iOS 超级

chāo jí super-; ultra-; hyper-

签名

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

购买

gòu mǎi to purchase; to buy

【 yinxingkj】mtt