但这事说来容易做来难，最好的结果莫过于所有参与者都同意维持当前的自由贸易状况，同时英国在免税的基础上设置一个新的对外关税，适用于所有欧盟成员国。
That is easier said than done. The best result would be if all players agreed to maintain the free trade already achieved, with the UK setting a new external tariff on a duty-free basis, applicable to all comers.