【中文版】

合约标的是合约所指的对象，可以是商品、服务、资产等。在合约中，标的物是合约双方所约定的、在未来某一时间进行交易的商品或服务。例如，在期货合约中，标的物是未来交付的大豆、原油等实物商品，或者是一份股票、债券等金融资产。

在合约中，标的物的数量和质量必须明确规定。例如，在一份期货合约中，需要明确规定大豆的数量和交货日期，以及质量标准和交货地点等。这些条款和条件是合约的基础，也是合约双方进行交易的依据。

除了标的物本身，合约还包括其他重要条款和条件，例如交割方式、交割地点、交割时间、价格等。这些条款和条件直接影响到合约双方的利益和义务。例如，如果价格波动过大，可能会导致合约一方遭受损失。因此，在签订合约前，双方需要进行充分的协商和谈判，以确保合约的公平和合理性。

总的来说，合约标的是指合约所涉及的对象，是合约的重要组成部分。在签订合约前，双方需要认真了解合约标的的详细信息，并充分协商和谈判以确保自己的利益得到保障。

【英文版】

The contract subject refers to the object of the contract, which can be commodities, services, assets, etc. In the contract, the subject matter is the commodity or service agreed by both parties to be traded at a future date. For example, in the futures contract, the subject matter is the physical commodity such as soybeans, crude oil, etc. to be delivered in the future, or a financial asset such as a stock, bond, etc.

In the contract, the quantity and quality of the subject matter must be clearly stipulated. For example, in a futures contract, it is necessary to specify the quantity and delivery date of soybeans, as well as quality standards and delivery location, etc. These terms and conditions are the basis of the contract and also the basis for both parties to trade.

In addition to the subject matter itself, the contract also includes other important terms and conditions, such as delivery method, delivery location, delivery time, price, etc. These terms and conditions directly affect the interests and obligations of both parties to the contract. For example, if the price fluctuations are too large, it may result in one party to the contract suffering losses. Therefore, before signing the contract, both parties need to conduct full consultation and negotiation to ensure the fairness and reasonability of the contract.

In summary, the contract subject refers to the object involved in the contract, which is an important part of the contract. Before signing the contract, both parties need to carefully understand the detailed information of the contract subject and fully consult and negotiate to ensure that their interests are protected.