好用

hǎo yòng useful; serviceable; effective; handy; easy to use

tf 签名

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

唯一

wéi yī only; sole

购买

gòu mǎi to purchase; to buy

联系

lián xì connection; contact; relation; to get in touch with; to integrate; to link; to touch

lián xì variant of 聯繫|联系[lian2 xi4]

TG:duo785dwm