touchdown
noun [ C ] uk/ˈtʌtʃ.daʊn/ us/ˈtʌtʃ.daʊn/
(LANDING)
（飞机或航天器的）着陆，降落
the landing of an aircraft or of some types of spacecraft
One of the plane's tyres burst on touchdown. 着陆时，飞机的一个轮子爆胎了。
See also: touch down
(SPORTS)
（美式橄榄球赛中持球越过对方球门线或将球传给越过对方球门线队友的）持球过球门线得分
(in American football) the act of scoring points by carrying the ball across the other team's goal line or throwing the ball so that it is caught by a member of your team who is across the other team's goal line
（英式橄榄球赛中持球越过对方球门柱的）触地得分
(in rugby) the act of scoring points by putting the ball down on the ground behind the other team's goal