Construction on the site of the International Horticultural Exhibition 2019 Beijing China and its supporting infrastructure¹ has been completed, 100 days before the opening, the city government said.   北京市政府表示，2019北京世界园艺博览会场馆以及配套基础设施已经在开幕前100天建设完毕。
    The interior decoration, mechanical and electrical installation, and exterior² components³ of the four main venues⁴ of the expo have come to an end, and exhibits arrangement teams are in place, said Wang Hong, deputy city mayor who is in charge of the expo.   Wang said the landscapes and municipal infrastructure, such as heating, electricity and fire control, had all been completed, in addition to eight new streets leading to the expo site.   More than 110 countries and international organizations, as well as over 120 non-official exhibitors, have confirmed participation⁵, making it the highest attendance in the global event's history.   Wang added that the gardens for 10 out of 80 countries and international organizations carrying out outdoor exhibitions had been basically completed, including for Japan and India.   Open from April 29 to Oct. 7, the expo will exhibit the latest achievements in flower, and fruit and vegetable farming at the foot of the Great Wall in Yanqing.   This is the second time for China to hold such a high-level horticulture expo. Southwestern Chinese city Kunming held the expo in 1999.

1 infrastructure      n.下部构造，下部组织，基础结构，基础设施 参考例句：

• We should step up the development of infrastructure for research.加强科学基础设施建设。
• We should strengthen cultural infrastructure and boost various types of popular culture.加强文化基础设施建设，发展各类群众文化。

2 exterior      adj.外部的，外在的；表面的 参考例句：

• The seed has a hard exterior covering.这种子外壳很硬。
• We are painting the exterior wall of the house.我们正在给房子的外墙涂漆。

3 components      （机器、设备等的）构成要素，零件，成分； 成分( component的名词复数 )； [物理化学]组分； [数学]分量； （混合物的）组成部分 参考例句：

• the components of a machine 机器部件
• Our chemistry teacher often reduces a compound to its components in lab. 在实验室中化学老师常把化合物分解为各种成分。

4 venues      n.聚集地点( venue的名词复数 )；会场；（尤指）体育比赛场所；犯罪地点 参考例句：

• The band will be playing at 20 different venues on their UK tour. 这个乐队在英国巡回演出期间将在20个不同的地点演出。
• Farmers market corner, 800 meters long, 60 meters wide livestock trading venues. 农牧市场东北角，有长800米，宽60米的牲畜交易场地。 来自互联网

5 participation      n.参与，参加，分享 参考例句：

• Some of the magic tricks called for audience participation.有些魔术要求有观众的参与。
• The scheme aims to encourage increased participation in sporting activities.这个方案旨在鼓励大众更多地参与体育活动。