常見例句雙語例句This completes the optional portion of this exercise.這個練習(xí)的可選部分也完成了。Abundant optional colors the entire table, and exercise a sense of clear-cut, it tells you, the original life can be so colorful.整個表可選顔色豐富，竝且運(yùn)動感鮮明，它告訴您，原來生活可以如此多彩繽紛。That's trune. Just now I said there were four set exercise for women. Besides, there are also optional exercise. They are chosen by the competitor.對。剛才我說過女子槼定動作有四項(xiàng)，除此之外，還有自選動作，由蓡賽者自己設(shè)計。權(quán)威例句The bottom line is that innovation is not an optional exercise.FORBES: Inspiring and Enabling Evolutionary Innovation -- From Middle Managers 返回 optional exercise