vt.

1. 照耀；照亮；使生辉
   His face was irradiated by happiness.

   他的面容闪露着幸福。

2. 启发，启迪；使明白
   irradiate the mind

   启迪心智

3. 放射；扩散；送出
4. （用X射线、紫外线等）照射（或处理）
   The surgeons irradiated the tumor.

   外科大夫用X射线照射瘤。

5. 【物】辐照

vi.

1. 发光；照耀
2. 变得光辉灿烂

a.

1. 发光的；光亮的[（+with）]
   a countenance irradiate with joy

   喜气洋洋的面容

v.

1. expose to radiation.
2. shine light on.