Penumbral
a. 日月半影的, 界限不明的
??? 情景例句
Excuse me, Richard, Marilyn.
打擾一下 Richard Marilyn。
And good luck to this wonderful new branch.
我祝愿這家新分行好運。
The killing of the bison changed the whole wildlife of the plains. With fewer bison, grass shoots were not eaten, so grass did not grow as strongly.
屠宰野牛改變了平原的全部野生生物。野牛少了，嫩草沒有牛來吃了，草就長得不粗壯。