Ov
abbr. 观测速度（observed velocity）；输出阀（output valve）；过电压（overvoltage）
🗣️ 情景例句
Smoking is harmful to your health.
吸烟有害健康。
Wisdom is better than gold or silver.
智慧胜过金银。
I must see the dentist now,nurse.
我必须现在就见牙科医生，护士。