磅: (loanword) pound (unit of weight, about 454 grams)...
论文: paper, treatise, thesis, to discuss a paper or thesis (old)...
谋生: to seek one's livelihood, to work to support oneself, to earn a living...
屡次: repeatedly, time and again...
好久: quite a while...
便利店: convenience store...
来源于: to originate in...
炮: cannon; gun; firecracker; artillery piece...
均衡: equal, balanced, harmony, equilibrium...
得: to have to, must, ought to, to need to...