congrats和congratulations的区别：含义不同、用法不同。congrats主要用作名词，含义为“祝贺”、“祝贺词”；congratulations可作名词，含义为“恭喜”、“祝贺”、“贺词”、“祝贺的话语”。
一、congrats的意思及用法
congrats作为名词，意为恭喜;祝贺;祝贺恭喜。
例句：Well, even though it doesn't say so on it, it's a fish! Congrats.
尽管上面没有标明是条鱼，恭喜你们。
Congrats. Just lost my appetite. Seat's all yours.
恭喜你我没食欲了座位让给你了
She wants you, dude. Congrats.
她想要你，老兄，恭喜
Congrats to China for this big step in the J-20 fighter.
恭喜中国四代机取得重大进步。
And if things have started to look up already, hooray and congrats!
如果情形已有改变，那万岁和恭喜了！
Congrats cool lacy, you accept that you're human and do your best to be a good human.
恭喜你，你承认自己是个凡人，想尽力成为一个好人。
二、congratulations的意思及用法
congratulations作为名词，意为祝贺的话语;贺词；恭喜;祝贺。
例句：Congratulations, you have a healthy baby boy...
恭喜，你生了个健康的男孩。
Hearty congratulations to everyone involved.
谨向所有有关人员表示热烈的祝贺。
It's great to have you back. Congratulations are surely in order!
你回来真是太好了，就等着向你道贺呢！
Permit me to offer you my sincere congratulations.
谨致衷心祝贺。
People crowded round the player with congratulations.
人们簇拥着那个运动员向他祝贺。
The letter arrived in congratulation of my graduation from the university.
我收到了大学毕业的贺信。
