詞語：underspin
underspin的解釋
underspin['ʌndəspin]n. 【體育】(球的)下旋【力學】自旋不足
underspin的意思
underspin 下旋;自旋不足;下旋球 上旋轉球;
underspin的參考例句
1.Solution: To impart underspin, you must swing high to low, but when players chop down too severely and finish low, their shot hits the net. 解決方案：為了要授予下旋球，你一定要由高到低揮拍，但是當球員太嚴重地劈砍下來而在低位完成收拍，他們的打擊就掛網了。
2.This same arm position on the volley is the key to underspin. The backhand volley underspin allows us to hit low balls with more spin to control the depth of the volley. 截擊時同樣的手臂位置是產生下旋的關鍵。反手截擊下旋可以打出更多旋轉的低球，能夠控制好截擊的深度。
3.We also use this backhand volley motion on slice or underspin backhand hit from the baseline. The only difference here is the body is more involved with rotation and the backswing is larger. 截擊時同樣的手臂位置是產生下旋的關鍵。反手截擊下旋可以打出更多旋轉的低球，能夠控制好截擊的深度。