Propugnaculum
防御工事, 堡壘
??? 情景例句
Lacks maturity.
不成熟。
Don't you think you've eaten enough?
你不是吃的很多了嗎？
We owe a lot to the birds and beasts who eat insects but all of them put together kill only a fraction of the number destroyed by spiders.
我們要十分感謝那些吃昆蟲的鳥和獸，然而把它們所殺死的昆蟲全部加在一起也只相當于蜘蛛所消滅的一小部分。