Classically, a pleural effusion will cause decreased breath sounds, dullness to percussion, which is tapping, on the back, and decreased tactile fremitus.

典胸腔积液会导致呼吸音减少，背部叩诊浊音，触语颤减。

Tactile fremitus is a normal finding - it's when the chest wall can be felt vibrating when a person speaks.

触语颤（语音震颤）是指当人说话时可以从胸壁处震动。

There's also tactile vocal fremitus, which is when you can feel more vibrations from a person's chest or back after they repeat certain phrases.

也会有触诊语颤，即一个人重复特定词语后从胸腔和背部能更多震动。