网球运动员是一群不折不扣的空中飞人,一年四季都在全球旅行参赛。对于那些刚刚接触国际比赛的青少年选手来说,他们需要注意哪些细节问题呢?出发前的准备护照是进入一个国家的有效身份证件。在出国比赛前,球员需要申请一本护照。除部分免签国和落地签国家外,球员还需要办理目的地所在国的签证。在申请签证时,通常需要提供护照、护照照片和担保文件等材料。申请签证主要有两种方式:通过旅行社或者直接去大使馆办理。需要注意的是,每个国家签发签证的规定不一,签证有效期的长短也不相同,所以应该了解所去国家的有 Tennis players are an absolute group of trapeze players who travel all over the world year-round. What details do they need to be aware of for young players who have just come into contact with international competitions? Pre-departure preparation Passports are valid identification documents for entering a country. Before going abroad, players need to apply for a passport. In addition to some visa-free countries and landing sign the country, the player also need to apply for the visa destination country. When applying for a visa, it is usually necessary to provide passports, passport photos and documents such as security documents. There are two main ways to apply for a visa: go through the travel agency or go directly to the embassy. It should be noted that the visa issuance in different countries varies from one visa to another and the validity period of visas is also different. Therefore, it is important to know where the countries go