“生硬地”常见的英文表达有 “stiffly”、“awkwardly” 或 “unnaturally”，具体使用哪个词取决于语境：
“stiffly”：侧重于描述动作或行为不自然、拘谨、缺乏流畅性。例如：“He moved stiffly, as if he were not used to the new environment.（他动作生硬，好像不习惯新环境。）”
“awkwardly”：强调行为或表达不自然、笨拙，带有一种不协调或令人尴尬的感觉。例如：“She spoke awkwardly, trying to find the right words.（她说话生硬，努力寻找合适的措辞。）”
“unnaturally”：指行为或表现与自然状态不符，显得刻意或不真实。例如：“He smiled unnaturally, as if forcing himself to be happy.（他笑得生硬，好像是在强迫自己开心。）”