摘要：不要想当然地以为是“帮某人一个大手”哦。也千万不要理解为给某人一个大嘴巴或大耳光，如果别人和大家说give him a big hand你冲过去打了人家一巴掌那就尴尬之极啦！
give sb a big hand
给热烈鼓掌
sb get a big hand
某人受到鼓掌喝彩
to show your approval of sb by clapping your hands; to be applauded in this way
Ladies and gentlemen, let's give a big hand to our special guests tonight.
女士们、先生们，让我们以热烈的掌声欢迎今晚的特邀嘉宾。
Let's give a big hand to Sally for singing so beautifully tonight.
让我们为莎莉今晚美妙而出色的演唱热烈鼓掌。
Mr Wells got a big hand from most of the people present.
威尔士先生受到了在场大部分人的鼓掌喝彩。
give sb a big hand｜give sb a warm round of applause
给某人热烈鼓掌。
Let's give him a big hand for his efforts.
让我们为他的努力而热烈鼓掌。
give sb a big hand （或者give a big hand to sb）热烈地欢迎某人;
为……而(长时间持续不断的)热烈鼓掌，喝彩
不要想当然地以为是“帮某人一个大手”哦。也千万不要理解为给某人一个大嘴巴或大耳光，如果别人和大家说give him a big hand你冲过去打了人家一巴掌那就尴尬之极啦！
Let's give a big hand to Sally for singing so beautifully tonight.
让我们为莎莉今晚美妙而出色的演唱热烈鼓掌。
Ladies and gentlemen, let's give a big hand to our special guests tonight.
女士们、先生们，让我们以热烈的掌声欢迎今晚的特邀嘉宾。
The team was given a big hand when it took its place on the field.
球队一出场，观众便给予他们长时间的热烈鼓掌。
Let's give' em a big hand.
让我们为他们热烈鼓掌。《柯林斯高阶英汉双解学习词典》
As soon as the film star appeared on the stage, the audience gave her a big hand.
那电影明星一上台，观众们就报以热烈的掌声。
Give yourselves a great big hand. You deserve it.
给你们自已一些热烈的掌声这是你们应得的！
Let's all give them a big hand for their marvellous creations.
让我们大家为他们的精彩杰作向他们鼓掌祝贺。
Let's give her a big hand!
让我们以热烈的掌声欢迎她吧！
Let's welcome our special guest and give him a big hand!
让我们用热烈的掌声欢迎特邀来宾！
Now, " said the compere, "this little girl has traveled all the way from Liverpool to sing to us tonight. So let's all give her a big hand."
节目主持人说："今天晚上，这个从利物浦远道而来的小姑娘将为我们演唱，让我们热烈鼓掌欢迎她。"
I got a big hand for dancing so well.
因为跳舞跳得很好，我得到了大家热烈的掌声。
另外“鼓掌”还有一个比较正式的表达是applause，上述表达中的big hand就可以替换成applause。
What a wonderful speech! Let's give her a round of applause.
好精彩的演讲啊！让我们给她热烈的掌声。
She got a round of applause when she finished.
她讲完时得到一阵掌声。
这里的a round of applause=a short period of applause
Clap one's hands 鼓掌；拍手
We all clapped our hands hard after the performance.
演出结束后，我们热烈地鼓掌。
注意：
give sb a hand｜do sb a favor, help sb to do sth.
帮某人一个忙（积极的帮助）
give/lend sb a hand 帮助某人
We gave him a hand bringing it back.
我们帮他把它弄了回来。
He thanked all who had a hand in his release.
他向所有帮助自己获得释放的人表示感谢。
I'd be glad to lend a hand.
我很乐意帮忙。
I could see you'd want a hand with the children
我能看出你需要有人帮着照看孩子。
以上4例摘自《柯林斯高阶英汉双解学习词典》
Let me give you a hand with those bags .
我来帮你拎那些包吧。《牛津高阶英汉双解词典》
The neighbours are always willing to lend a hand .
邻居们总是乐于帮忙。
I went over to see if I could lend a hand.
我过去看我能不能帮上忙。
Do you need a hand with those invoices?
要不要我帮你处理那些发票？
The dog gave me a hand to clean up the mess.
狗帮助我收拾烂摊子。
Can you give me a hand with this box ?
你能帮忙抬一下箱子吗？
lend sb a hand给某人帮个忙
The volunteer lent the women a hand with her luggage.
志愿者帮助那个妇女拿行李。
来源：翅膀英语