Aavso
abbr. American Association of Variable Star Observers 美国变星观测者协会
🗣️ 情景例句
to work with Dad towards solving that problem?
和爸爸一起来解决这个问题怎么样？
May I have a receipt?
我可以要一张收据吗？
When I touched him on the shoulder, he turned around.
我拍他的肩膀，他转了过来。