Most people with this type don't have symptoms, but occasionally patients feel lightheadedness, dizziness, and syncope.

大多数这一型不出现症，但有时可出现头昏、眩晕和晕厥。

Most people with Mobitz type II do feel symptoms like fatigue, dyspnea, chest pain, and syncope, though the severity can vary from patient to patient.

大多数莫氏II型会有乏力、呼吸困难、胸痛和晕厥等症，尽管不同症严不同。

Patients with complete heart block are usually symptomatic, with symptoms ranging from syncope, confusion, dyspnea, severe chest pain, and these patients are at risk of dying.

完全传导阻滞通常都有症，包括晕厥、意识障碍、呼吸困难以及严胸痛，甚至有死亡风险。

" Sometimes, " answered the doctor, " one feels nothing at first, and then syncope sets in, and more especially with people of strong constitution like this man" .

" 有时候，" 医生接着说，" 开头不觉得怎么样，忽然一下就昏倒了，特别是身体结实人，像他这样。"

The light that long ago had struck me into syncope, recalled in this vision, seemed glidingly to mount the wall, and tremblingly to pause in the centre of the obscured ceiling.

很久以前让我昏厥光，在这个幻象中回忆起来，似乎滑行到墙上，颤抖着停在模糊天花板中央。