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The development of international trade has made the exchange of materials between countries increasingly frequent. Among them, the choice of transportation mode is crucial. Just like blood flowing in the human body, transportation plays a key role in transporting nutrients in economic activities.

Let's first talk about the supply of rice in Japan. As an island country, Japan has relatively limited agricultural resources. Although Japan has been committed to improving agricultural production efficiency, it is still difficult to fully meet domestic demand. When rice stocks drop sharply, in addition to the so-called "hungry tourists" factor, we need to think about deeper reasons.

This brings us to the transportation link in international trade. Among the many modes of transportation, air transportation plays an important role in some specific areas due to its fast and efficient characteristics. For example, for some high-value and time-sensitive goods, air transportation is often the first choice.

However, air transport is not perfect. Its high cost limits its application in large-scale cargo transportation. In contrast, sea transport has obvious cost advantages in transporting bulk commodities. However, sea transport takes a long time and may not be able to meet the needs of some urgently needed materials.

Back to the issue of Japan's rice inventory, assuming that Japan needs to urgently import rice from other countries to replenish its inventory, air transportation may become an option to consider. But this also means higher costs, which requires a trade-off between cost and time.

In addition, various uncertainties in the transportation process will also affect the supply of goods. For example, weather changes, route adjustments, policy changes, etc. may lead to transportation delays or increased costs.

In the context of globalization, the economic interdependence of countries is increasing. Material supply problems in one country may trigger a chain reaction and affect the economic stability of other countries. Therefore, it is particularly important to establish an efficient and stable international trade and transportation system.

This not only requires governments to strengthen cooperation and jointly formulate reasonable policies and rules, but also requires transportation companies to continue to innovate and improve service quality and efficiency. At the same time, the development of science and technology has also brought new opportunities and challenges to the transportation industry.

For example, as drone technology matures, will it be possible to achieve rapid delivery of goods in a specific area in the future? Can the application of blockchain technology improve the transparency and security of the transportation process? These are all issues that deserve our in-depth discussion.

In short, the fact that Japan's rice stocks have fallen to their lowest level in 25 years provides us with a window to think about international trade and transportation. We should learn lessons from this and continuously improve the global trade and transportation system to cope with the increasingly complex economic situation.