During an annular eclipse, the moon covers only the central part of the sun's disk, leaving a ring of sunlight still visible.

在日环食发生的时候，月亮仅仅遮挡住了太阳光晕的中间部分，在外侧留下一圈可见的光环。

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An annular eclipse occurs when the moon does not cover the entire disc of the sun so that a ring of light encircles the shadow of the moon.

当月亮不能完全遮住太阳时，月亮影子的周围就会有一圈亮光，日环食就发生了。

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During Sunday's total solar eclipse, the moon covered the sun over Easter Island, so that only the faint, white ring of the sun's upper atmosphere, or corona, was visible.

周日发生在复活节岛上的日全食，月亮将太阳覆盖了起来，只有太阳上层大气所形成的一圈微弱的白色圆环或称日冕处于可见状态。

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During his 32nd solar eclipse observation, the Harvard-trained astronomer is to study the elusive coronal ring, the outer atmosphere of the sun, which can only be seen when the moon blots out the solar disk.

CNN: Africa awaits total eclipse of the sun