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umbra的英文翻譯是什么意思，詞典釋義與在線翻譯：
英英釋義
Noun:
-
a region of complete shadow resulting from total obstruction of light
umbra的用法和樣例：
例句
用作名詞 (n.)
- This includes the continuous survey of umbra and penumbra of the sunspot.
這包括對太陽黑子本影和半影持續的觀測。 - It is the custom that aged or infirm Striders make a final journey into the Umbra, never to return.
年老或者衰弱的漫游者會根據傳統最后一次出發去影界，一去不歸。 - This is a lighter area between the umbra and the edge of a shadow.
這是本影和陰影邊緣之間較亮的區域。 - Shaped like a cone extending into space, the umbra has a circular cross section that can be most easily seen during a lunar eclipse.
本影就像一個圓錐一樣延伸在空間中，當月食發生時，它很容易被看到。
