Astronomers can______when and where there will be eclipses of the sun and the moon.为什么只能填calculate不能填figure?

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Astronomers can______when and where there will be eclipses of the sun and the moon.为什么只能填calculate不能填figure?
Astronomers can______when and where there will be eclipses of the sun and the moon.
为什么只能填calculate不能填figure?

Astronomers can______when and where there will be eclipses of the sun and the moon.为什么只能填calculate不能填figure?
calculate计算,如用figure要加out

日食和月食是需要测量计算的,figure一般指明白了解。

figure当“计算”讲时为不及物动词
得填figure out 意为“计算出”
而calculate是及物动词
可以直接加宾语。