正: Chinesest month of year, just (right), main, upright, straight, correct, principle...
优良: fine, good, first-rate...
大数据: big data (computing)...
防火墙: firewall...
犬: dog, Kangxi radical 94...
晒: (of the sun) to shine on, to bask in (the sunshine), to dry (clothes, grain etc) in the sun, to expose and share (one's experiences and thoughts) on the Web (loanword from share), (coll.) to give t...
枪毙: to execute by firing squad, to shoot dead, to discard, to get rid of...
泪水: teardrop, tears...
路人: passer-by, stranger...
签字: to sign (one's name), signature...