父母这次来住了快一年了,绿卡刚拿到。现要回国。请问回去后可以待多久而不会导致回来时绿卡被没收?
我知道人们常说半年,因为已经在这里一年了,请问回去待一年或接近一年会不会有问题?
-Because this is their first time, it is fine as long as they return to US before one year.