1864, originally in rugby, where the ball is literally touched down on the other side of the goal, from verbal phrase (by 1859 in sports), from touch (v.) + down (adv.). As "landing of an aircraft" from 1935.
雙語例句
1. The crowd yelled when the hometown team scored a touchdown.
當他們自己的隊得了底線分時,人群高聲呼喊起來.
來自《簡明英漢詞典》
2. The Tigers broke the ice with a touchdown.
虎隊首先底線得分,打破僵局.
來自《現代漢英綜合大詞典》
3. He caught a punt and scored the winning touchdown, with a minute left to play.
他接住對方的棄踢球，成功達陣，取得了制勝得分，此時比賽只剩最后一分鐘。
來自柯林斯例句
4. Controlled land landing also demanded some way to cushion touchdown impact.
定點控制著陸還要求解決著陸時所產生的強大沖力問題.
來自英漢非文學 - 科學史
5. The touchdown happened a little late because of cloudy and windy weather.