I could not but observe that as she took the seat which Sherlock Holmes placed for her, her lip trembled, her hand quivered, and she showed every sign of intense inward agitation.

当她接受了福尔摩斯的邀请从容坐下时，我禁不住注意到她的嘴唇和双手都在颤抖，种种迹象表明她内心非常激动。