The images of the exposed metal support structure have caused concerns about the reactor's safety.

裸露的金属支撑结构的图像引起了人们对反应堆安全的担忧。

Metal supports were added to strengthen the outer walls.

【strengthen】增加了金属支架以加固外墙。

The huge Captain America shield, which had come to rest atop a section of scaffolding, teetered, as the metal supports groaned under the additional weight.

巨大的美国队长盾牌停在一段脚手架上摇摇欲坠，金属支撑结构因额外的重量而嘎吱作响。