1. Depending on the country, a 旅游签证 may be one of many types of 访问签证.
2. In the sentence 所以出国之前，你要先找到那一个国家的大使馆，然后申请对的签证，最后才可以成功地出国 the 才 emphasizes the condition of having to first obtain the correct visa before being able to travel.
1. Depending on the country, a 旅游签证 may be one of many types of 访问签证.
2. In the sentence 所以出国之前，你要先找到那一个国家的大使馆，然后申请对的签证，最后才可以成功地出国 the 才 emphasizes the condition of having to first obtain the correct visa before being able to travel.