The time of year when day and night are equal in length everywhere is known as an equinox请问这个是甚麼意思呢

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The time of year when day and night are equal in length everywhere is known as an equinox请问这个是甚麼意思呢

The time of year when day and night are equal in length everywhere is known as an equinox请问这个是甚麼意思呢
The time of year when day and night are equal in length everywhere is known as an equinox
请问这个是甚麼意思呢

The time of year when day and night are equal in length everywhere is known as an equinox请问这个是甚麼意思呢
白天和黑夜时间长度相同的日子 = 春分 和 秋分
equinox
[ˈi:kwinɔks]
n.昼夜平分点,春分或秋分

就是指在一年的这个时候世界上任何地方的白昼和黑夜是一样的长度就叫做昼夜平分时(春分或秋分)。

每年中,世界各地的白天和黑夜的时间相等的时候,就是春分或秋分。
is known as 是系动词is +过去分词known 构成系表结构。意思是“大家所共识的”