我甚至能举出具体的例子。
Henry III, educated there (Bristol Castle) in his youth, spent lavishly on it, adding a barbican before the main west gate, a gate tower, and magnificent great hall.
所以被关在城堡里的那个人也就是我的头像就表示，你了不起，你清高。

A barbican (from Old French: barbacane) is a fortified outpost or fortified gateway, such as at an outer defense perimeter of a city or castle, or any tower situated over a gate or bridge which was used for defensive purposes.
这个词翻过来就是瓮城。
老抽楼，弄得我的回复都顺序错乱了。

Fortified or mock-fortified gatehouses remained a feature of ambitious French and English residences well into the 17th century. Portuguese medieval fortification nomenclature uses barbican ("barbacã") to describe any wall outside of and lower than the main defensive wall that forms a second barrier. The barrier may be complete, extensive or only protect particularly weak areas. The more restrictive term gate barbican is used for structures protecting gates.

In the Middle Ages, barbicans were typically situated outside, or at the edge of, the main line of defenses, and were connected to the city walls with a walled road called the neck. They would thus defend the entrance to the city or castle at the "choke point".

In the 15th century, with the improvement in siege tactics and artillery,

barbicans lost their significance. //Barbicans were built well into the 16th century.