The largest unknown area is the UK's future in the customs union, which provides for the frictionless movement of goods across Europe.
最大的悬念是英国在欧洲关税同盟的未来，后者使得商品可以在欧洲境内畅通无阻地流通。
The largest unknown area is the UK's future in the customs union, which provides for the frictionless movement of goods across Europe.
最大的悬念是英国在欧洲关税同盟的未来，后者使得商品可以在欧洲境内畅通无阻地流通。
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