Later when when working out, then think their knowledge is not sufficient to meet. After access to foreign guests, when even the most basic communication is not going to.
Later when out of work, after that time feel that their knowledge is not enough to cope. After guests have access to a foreign country, then even the most basic communication can not do.
When I came out to work later, I felt that my knowledge was not enough to deal with. After that, I had the opportunity to contact with the foreign guests, at that time, even the most basic communication can not be done.