Scala
[医] 阶
🗣️ 情景例句
If someone doesn't buy it before then,
如果在此之前没有人买走的话。
Youth looks forward and age backward.
青年人向前看，老年人向后看。
And Chinese, Korean, Filipino and Indian engineers are graduating in droves from California's colleges.
中国、韩国、菲律宾和印度的工程师一批批地从加州的大学毕业。