解释下列句中加粗的词。（1）樊於期偏袒扼腕而进________________________________________________________（2）诸郎中执兵________________________________________________________（3）樊将军以穷困来归丹________________________________________________________（4）愿大王少假借之________________________________________________________（5）左右既前，斩荆轲________________________________________________________（6）至陛下，秦武阳色变振恐________________________________________________________（7）丹不忍以己之私，而伤长者之意 ________________________________________________________