中文：

服务贸易逆差是指一国在一定时期内进口服务总额大于出口服务总额的现象。也就是说，一国在服务贸易领域中，进口额大于出口额，导致国际收支不平衡。

服务贸易逆差的原因有很多种。首先，一国在服务贸易领域的竞争力不足，导致出口能力弱。其次，一国对服务贸易的需求量较大，尤其是对高技术、高附加值的服务业需求不断增加，导致进口额增加。此外，一国的服务业发展水平相对较低，无法满足国内市场需求，也需要大量进口。

服务贸易逆差的影响主要表现在以下几个方面。首先，会导致一国国际收支不平衡，影响国家经济安全。其次，会导致一国在国际经济合作中处于不利地位，被认为是对国际贸易的“依附型经济”。此外，服务贸易逆差还会影响一国的产业结构升级和经济发展方式转变。

为了解决服务贸易逆差问题，一国可以采取多种措施。首先，可以加强服务贸易出口能力，提高服务业的竞争力。其次，可以加强对服务业的投资和政策支持，促进服务业的发展。此外，还可以通过加强国际经济合作，扩大服务贸易的国际市场。

英文：

The service trade deficit refers to a situation where a country imports more services than it exports during a certain period of time. In other words, a country has a higher import volume than export volume in the field of service trade, resulting in an international balance of payments imbalance.

There are many reasons for the service trade deficit. First, a country's competitiveness in the service trade is insufficient, resulting in weak export capabilities. Second, a country's demand for service trade is high, especially for high-tech and high-value-added services, leading to an increase in imports. In addition, the development level of a country's service industry is relatively low, unable to meet domestic market demand, and also requires a large amount of imports.

The impact of the service trade deficit mainly manifests in the following aspects. First, it will lead to an imbalance in international balance of payments and affect national economic security. Second, it will lead to a disadvantageous position in international economic cooperation and be considered as an "dependent economy" in international trade. In addition, the service trade deficit will also affect a country's industrial structure upgrading and economic development mode transformation.

To solve the problem of the service trade deficit, a country can take various measures. First, it can strengthen export capabilities in the service trade and improve the competitiveness of the service industry. Second, it can increase investment in the service industry and provide policy support to promote the development of the service industry. In addition, it can also expand the international market for service trade through strengthening international economic cooperation.