| Front | penumbra [pen-;umbr;-a n.] |
|---|---|
| Back | n. [物理]半影；（绘画）浓淡相交处 |
Learn with these flashcards. Click next, previous, or up to navigate to more flashcards for this subject.
Next card: Urb l urbis)=city 城市
Previous card: Adumbrate ad-;umbr;-ate v v.勾画 暗示 遮蔽
Up to card list: 英语词根与单词的说文解字-李平武 补充