Iau
abbr. 国际大学协会（International Association of Universities）；国际天文联合会（International Astronomical Union）
🗣️ 情景例句
Is the tip included in the bill?
账单里包括小费吗？
Don't forget to write your return address on the letter.
不要忘记在信封上写你的回邮地址。
We couldn't get across the river.
我们过不了河。