A permit is required to visit, few linguists have worked there and a reliable list of languages has never been drawn up.
由于进入该地区需要官方的许可，只有很少的语言学家在这个地区工作，而且关于这一地区的语言从未形成一个可靠的清单列表。
I have just read that it is now necessary for foreigners to get a permit to visit both Bayanbulak and Karakul Lake.
我刚看到现在外国人必要取得许可证才能去巴音布鲁克草原和卡拉·库尔湖。
Many families do not permit guests to help at all on the first visit, but if they become frequent guests in the house, they gradually join in with the various daily activities of the family.
许多家庭都不许初次来访的客人帮忙，不过如果客人常到某家做客，也会逐渐和主人家一起做各类日常家务。
Many families do not permit guests to help at all on the first visit, but if they become frequent guests in the house, they gradually join in with the various daily activities of the family.
许多家庭都不许初次来访的客人帮忙，不过如果客人常到某家做客，也会逐渐和主人家一起做各类日常家务。
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