happyadj.高兴的；幸福的；幸运的；乐意的happy holiday愉快的假期／假日happy factors愉快因子happy old age幸福的晚年Happy glucose快乐葡萄糖happy geology快乐地质Happy landing祝你一路顺风。happy and gay欢乐happy go luckyadj.无忧无虑的happy occasion快乐的场合happy birthday生日快乐