deal是英语单词，有“交易、处理、成交、协议”等多种意思。
作为名词，deal表示“交易、协议、成交”等。例如：
A deal is an agreement between two or more parties.
交易是两个或多个当事方之间的协议。
We made a deal to sell our house.
我们达成了出售房屋的协议。
The deal fell through.
交易失败了。
作为动词，deal表示“交易、处理、成交”等。例如：
We deal in stocks.
我们交易股票。
The company deals with a wide range of products.
该公司经营多种产品。
The negotiations are still ongoing.
谈判仍在进行中。
deal还可以表示“处理、应付”等。例如：
I\'ll deal with it later.
我以后会处理的。
I can\'t deal with all this stress.
我无法应付所有的压力。
deal还可以表示“分配、分发”等。例如：
The cards were dealt.
牌已发出。
The teacher dealt out the papers.
老师发放了试卷。
deal还可以表示“对待、处置”等。例如：
She dealt with him harshly.
她对他严厉。
The company dealt with the problem quickly.
公司迅速解决了问题。
deal在句子中通常用作主语、宾语、表语等。
deal的用法比较灵活，可以根据具体的语境进行理解。
The deal is that I\'ll do the dishes if you mow the lawn.
交易是这样的，如果你把草坪割了，我就洗碗。
We\'re going to make a deal.
我们要达成协议。
How did you deal with the stress of the job?
你是如何应付工作的压力的？
The teacher dealt the cards face down.
老师把牌面朝下发了出去。
The company dealt with the crisis effectively.
公司有效地应对了危机。