n. if you describe a country, company, or product as a laggard, you mean that it is not performing as well as its competitors. 可数名词 落后者，技不如人者
also an adjective. 落后的
a person who makes slow progress and falls behind others
go from a leader to a laggard 从领头羊变成了落后者
1. This cut-throat contest in not for losers and laggards.
2. The Chinese national football team has long been a laggard, an embarrassment to many Chinese.
3. Britain's economy has gone from a leader fo a laggard internationally, as GDP growth has slowed sharply. 随着国内生产总值增长骤然减缓，英国经济已经从国际上的领导者变成了落后者。
4. Indeed, half a millennium ago Europe might justly have been considered a laggard. 事实上，半个世纪以前，欧洲可能被理所当然认为是一个落后者。
millennium /mɪˈlɛnɪəm/ n. 一千年，千年 Millennium 特指千禧年，2000年
5. On its current path, the country will remain a growth laggard.增长落后的国家
This country's economy was once a laggard, but now it has begun to catch up to others from behind. （自己）
Once a laggard, the economy of this country is starting to catch up. / Long a laggard, this country's economy is beginning to pick up.（参考翻译）
分析：已经开始迎头赶上，参考翻译用了现在进行时，且句式有省略。迎头赶上，catch up或pick up。
I won't be a laggard in this interview.