Aopa
abbr. Aircraft Owners and Pilots Association 航行器所有者和飞行员协会; American Orthotic and Prosthetic Association 美国矫正修复协会; anomalous origin of unilateral pulmonary artery 单侧肺动脉异常起端
🗣️ 情景例句
We must.
我们是该开始了。
He is embarrassed because he made a mistake.
他因为弄错而显得很窘。
Later, we ate our picnic under some trees.
后来，我们在树下吃野餐。