Orrs
(orr 的復(fù)數(shù)) abbr. 整體反應(yīng)率（The Overall Response Rate）；氧還原反應(yīng)（Oxygen Reduction Reaction）
??? 情景例句
Make yourself at home.
不要客氣。
How much is the salary a month?
每月薪水多少？
Portable boiling elements that can boil small quantities of water are useful when the right voltage of electricity is available.
如果有相配的電壓，可以煮少量水的便攜式熱水裝置是有用的。