名詞 cobweb:

1. a fabric so delicate and transparent as to resemble a web of a spider
2. filaments from a web that was spun by a spider
   同義詞：gossamer
3. a dense elaborate spider web that is more efficient than the orb web

1. Let's go for a walk and blow the cobweb away.
   咱們?nèi)ド⑸⒉剑逍岩幌骂^腦。
2. The spider can catch insects by cobweb.
   蜘蛛能用蜘蛛網(wǎng)抓住昆蟲。

cob.web

n.（名詞）

The web spun by a spider to catch its prey.
蜘蛛網(wǎng)：蜘蛛結(jié)成的網(wǎng)，用以捕捉食物
A single thread spun by a spider.
蜘蛛絲：蜘蛛吐出的單根絲
Something resembling the web of a spider in gauziness or flimsiness.
似蜘蛛網(wǎng)的事物：輕薄透明或易破碎的似蜘蛛網(wǎng)的東西
An intricate plot; a snare:
錯(cuò)綜復(fù)雜的計(jì)謀；陷阱：
例句：
caught in a cobweb of espionage and intrigue.
陷于間諜組織和陰謀的陷阱中

cobwebs Confusion; disorder:
cobwebs 混亂無序；雜亂：
例句：
cobwebs on the brain.
腦袋里一片混亂

v.tr.（及物動(dòng)詞）
cob.webbed,cob.web.bing,cob.webs
To cover with or as if with cobwebs.
掩蔽：用或仿佛用蜘蛛網(wǎng)復(fù)蓋

來源：
Middle English coppeweb
中古英語 coppeweb
coppe [spider] short for attercoppe from Old English 3ttercoppe 3tor [poison] copp [head]
coppe [蜘蛛] attercoppe的簡寫 源自 古英語 3ttercoppe 3tor [毒] copp [頭部]
web [web] from Old English * see web
web [網(wǎng)] 源自 古英語 *參見 web

【引伸】
cob.web.by
adj.（形容詞）