Question

bu4go3uya2nxia4o[be discreet (serious) in speech and manner] 苟:随便。不随便说笑,形容人态度稳重、严肃这位郑伯才君,……向来是个讲宋学的,方领矩步,不苟言笑。――清·梁启超《新中国未来记》