n.撑杆；支撑
adj.令人振奋的；提神的
动词brace的现在分词.
Transverse bracing was installed between the two shafts. 两根立柱之间设置了横撑。
A little bracing roughness is better than spoiling him. 令人精神振作的微弱粗暴比娇宠他要好得多。
