op on
造句带翻译释义:1.Robben needs an op on a knee injury picked up playing for Holland in midweek and may miss the rest of the season.罗本周中代表荷兰队比赛后需要对膝盖伤势做处理，或许他将缺席本赛季余下的比赛。
2.Objective: To observe the effects of ophiopogon polysaccharide(OP)on immune injured by stable magnetic field in mice.目的：研究川麦冬多糖对受恒定磁场辐射的防护作用。