Aashto
abbr. 美国国家公路与运输协会标准（American Association of State Highway and Transportation Officials）
🗣️ 情景例句
I'm going to excuse myself.
很抱歉失陪。
Love is without reason.
爱情是没理智的。
I'm afraid we haven't got any black shoes in that size at the moment.
恐怕此刻我们没有8号的黑色鞋了。