已经: already...
源泉: fountainhead, well-spring, water source, origin...
质疑: to call into question, to question (truth or validity)...
士气: morale...
广告: to advertise, a commercial, advertisement...
顺势: to take advantage, to seize an opportunity, in passing, without taking extra trouble, conveniently...
长远: long-term, long-range...