Pushdown
推下; 后进先出方式
🗣️ 情景例句
and we're trying to resolve that problem.
试图解决这类问题。
He brushes his teeth.
他在刷牙。
Last August. We had a lovely holiday, one of the best ever.
去年8月。我们度过了一个令人愉快的假日，也是有史以来最愉快的假日之一。