eclipse

1. N-COUNT An eclipse of the sun is an occasion when the moon is between the earth and the sun, so that for a short time you cannot see part or all of the sun. An eclipse of the moon is an occasion when the earth is between the sun and the moon, so that for a short time you cannot see part or all of the moon. (日、月) 食

...an eclipse of the sun. …一次日食。

...the solar eclipse on May 21. …5月21日的日食。

2. V-T If one thing is eclipsed by a second thing that is bigger, newer, or more important than it, the first thing is no longer noticed because the second thing gets all the attention. 使黯然失色

...the space programme has been eclipsed by other pressing needs. …这项太空计划和其他的紧迫需要相比已经黯然失色了。