Refugee return, arguably the biggest and most difficult and sensitive issue we deal with, was long ago handed over to the Bosnia and Herzegovina authorities.
难民回返问题，是我们处理的可争辩的而且是最大和最艰巨也是最敏感的问题，但这一问题早就移交给波斯尼亚和黑塞哥维那当局处理。