A pergola is a garden structure: upright posts holding up an open roof of crossing beams, with gaps between them, built so that climbing plants — grapes, roses, wisteria — can grow over the top and make a shaded walkway or sitting place. The important detail is that the roof is open.

A pergola is一個pergola是 a garden structure一種花園裡的結構：upright posts直立的柱子 holding up撐著 an open roof of crossing beams一個由交錯橫樑組成的開放式屋頂，with gaps between them橫樑之間留有空隙，built so that建造出來是為了讓 climbing plants攀爬植物——grapes, roses, wisteria像葡萄、玫瑰、紫藤——can grow over the top能爬到上面去，and make a shaded walkway or sitting place做出一條有遮蔭的走道或坐的地方。The important detail重要的細節 is that the roof is open是屋頂是開放式的。

It is not a roof that keeps rain off; the shade comes from the plants, or from the pattern of the beams themselves. That is what separates it from a 涼亭 or a pavilion, which has a solid roof and usually four walls or none but a real cover.

It is not這不是 a roof that keeps rain off一個能擋雨的屋頂；the shade comes from the plants遮蔭是來自植物本身，or from the pattern of the beams themselves或者來自橫樑本身排列的樣子。That is what separates it from這就是把它跟 a 涼亭 or a pavilion涼亭或pavilion（涼亭）區分開來的地方，which has a solid roof後者有實心的屋頂 and usually four walls or none但通常有四面牆、或完全沒有牆，but a real cover但一定有個真正的遮蓋物。

English speakers use the word for the real thing in a garden or park, and also, loosely these days, for the wooden or aluminium frames people put over a patio or a café's outdoor seating, even when nothing grows on them.

English speakers英文使用者 use the word用這個詞 for the real thing指真的那種東西 in a garden or park在花園或公園裡的，and also而且 loosely these days現在也比較鬆散地 for the wooden or aluminium frames用來指木頭或鋁製的架子 people put over a patio or a café's outdoor seating人們放在庭院上方、或咖啡廳戶外座位上方的那種，even when nothing grows on them即使上面什麼都沒種。

It is a normal, everyday word among people who garden or shop for houses; a person who never thinks about gardens may not know it. The plural is pergolas.

It is這是 a normal, everyday word一個很普通、日常的詞 among people who garden or shop for houses在會種花園、或看房子的人之間；a person who never thinks about gardens一個從不管花園的人 may not know it可能根本不知道這個詞。The plural is複數形是 pergolaspergolas。