礼物: gift, present...
当务之急: top priority job, matter of vital importance...
定金: down payment, advance payment...
变革: to transform, to change...
响亮: loud and clear, resounding...
昂贵: expensive, costly...
分: part, share, ingredient, component...
视频: video...
基地: base (of operations), industrial or military base, al-Qaeda...
得意扬扬: joyfully satisfied, to be immensely proud of oneself, proudly, an air of complacency...