- 一(horizontal line; boundary)
- 卜(stroke descending downward)
A vertical stroke pointing downward across a boundary line marks 'below'.
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lower Cambrian (geological period approx 530 million years ago)
The Lower Cambrian is a geological period.
lower Cambrian (geological period approx 530 million years ago)
The Lower Cambrian is a geological period.
A vertical stroke pointing downward across a boundary line marks 'below'.
A vertical stroke pointing downward across a boundary line marks 'below'.
lower Cambrian (geological period approx 530 million years ago)
lower Cambrian (geological period approx 530 million years ago)
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