若干: a certain number or amount, how many， how much?...
坚持: to persevere with, to persist in, to insist on...
飞往: fly to...
主题歌: theme song...
承诺: to promise, to undertake to do something, commitment...
广播: broadcast, broadcasting, to broadcast, (formal) to propagate, to publicize...
镇定: calm, unperturbed, cool...
舒适: cozy, snug...
寂寞: lonely, lonesome, (of a place) quiet, silent...
宪法: constitution (of a country)...
