这个国家的经济一度落后,不过现在已经开始迎头赶上了。
Once a laggard, the economy of this country is starting to catch up. 或 Long a laggard, this country's economy is beginning to pick up.)
2)结合自己的生活、学习、工作、兴趣等,想象在什么语境下会用到这个表达。先简要描述这个场景,再造句。
例子: There is a bell to summon laggard children to school.