他眼中流露出的恶意让人不寒而栗。

The ___malignity in his eyes sent chills down everyone's spine.

他的眼神中透露出一种令人不寒而栗的恶毒。

There was an unsettling ___malignity in his gaze that made people shiver.

医生通过核磁共振检查确定了肿瘤的恶性程度。

The MRI scan determined the ___malignity of the tumor.