易混淆的单词： OrsORsORS

Before working on the ors , depressurise the system .

操作ors前，先对该系统降压。

Meanwhile one must give ors to diseased person .

同时一必须给予口服补液盐病的人.

Wc like to eat out ofd . Ors in summer .

夏天我们喜欢在户外吃饭。

Kyle learned the truth , however , from a rebel agent named jan ors .

然而，从义军特工简奥斯那里，凯尔了解到了真相。

Main outcome measures : odds ratios ( ors ) for risk factors associated with myopia and hyperopia .

主要结果评价：近视和远视相关危险因素的优势比（ors）。