Parts of the monument were surrounded by a metal and wood support structure.

纪念碑的一部分被金属和木头组成的支护结构包围。

Workers had been renovating parts of Notre-Dame. Parts of the monument were surrounded by a metal and wood support structure.

此前，工人一直在修缮巴黎圣母院的部分建筑。纪念碑的一部分被金属和木头组成的脚手架包围。

In order to steady the structure, temporary wood supports were installed to prevent the buttresses from toppling the walls.

为了稳定结构，安装了临时木支架以防止扶壁倾倒墙壁。