free practice的用法和樣例：
例句
- Thebalance of my car was better than in yesterdays free practice, butstill not perfect for a single timed lap.
我的賽車(chē)的平衡性比在昨天的自由練習中要好，但是對于跑單個(gè)計時(shí)圈來(lái)說(shuō)仍不夠理想。 - On Friday, the car was oversteering, but this was caused by a problem in the right, rear shock absorber, which we only found out about after the practice.
周五，賽車(chē)轉向過(guò)渡，但這是由右面的一個(gè)問(wèn)題引起的，是后部的減震器，我們在自由練習后就發(fā)現了。
