Pushdown
推下; 后进先出方式
🗣️ 情景例句
Good morning, Mr. Kong.
早上好，孔先生。
Does Louis like lemonade sour?
路易斯喜欢酸味强烈的柠檬水吗？
But don't forget your things early in the morning.
早上别忘了带上你的东西。