be caused by

起因于, 由 ... 所引起

例句与用法：

Roughness of the skin can be caused by bad diet.

饮食不好可能引起皮肤粗糙。

The doctor told him that his disease was caused by unbalanced hormone.

医生告诉他他的病是由荷尔蒙失衡引起的。

Heart attacks and strokes can be caused by many reasons.

许多原因可引起心脏病和中风。

An abnormal sensitivity to or intolerance of light, especially by the eyes, as may be caused by eye inflammation, lack of pigmentation in the iris, or various diseases.

畏光，羞明对光线不正常敏感或无法忍受，尤指由眼引起的，可能是由眼炎、眼球虹彩中缺少色素或其它疾病而引起的