Definition: behaving in a way that is formal and not relaxed Level: C2
在正式晚宴上，他的举止总是相当拘谨。
His manner was always rather ___stiff at formal dinners.
经理那不苟言笑的举止让新员工们很紧张。
The manager's ___stiff demeanor made the new employees nervous.
在她的演讲中，她始终保持着一本正经的正式口吻。
In her speech, she maintained a ___stiff and formal tone throughout.
