反问: to ask (a question) in reply, to answer a question with a question, rhetorical question...
胸: chest, bosom, heart, mind, thorax...
正负: positive and negative...
表述: to formulate, enunciation, to explain sth precisely...
尽力: to strive one's hardest, to spare no effort...
季节: time, season, period...
解雇: to fire, to sack, to dismiss, to terminate employment...
此次: this time...
突破口: breach, gap, breakthrough point...
火山: volcano...
