贺卡: greeting card, congratulation card...
商人: merchant, businessman...
隐约: vague, faint, indistinct...
开夜车: to burn the midnight oil, to work late into the night...
同时: at the same time, simultaneously...
半: half, semi-, incomplete, (after a number) and a half...
及其: (conjunction linking two nouns) and its..., and their..., and his..., and her......
逞强: to show off, to try to be brave...
行情: market price, quotation of market price, the current market situation...
历程: course, process...
