Momentary wind speed in stadium at a track and field competition may seem to be a trifle thing, but world record could have in a balance. In tennis it takes an eagle eye to see whether a ball lands inside the tape. How does magnesium powder help gymnastics in competition?
瞬時風速對于體育館的田徑比賽項目似乎沒有影響,但對于打破世界紀錄可能會有推動作用 。在網球比賽中需要“鷹眼”來衡量球是否在界內 。而在體操比賽中鎂粉起到了怎樣的作用呢?
詞語解釋;
1. momentary a. 短暫的;瞬間的
2. trifle n. 小事