• n. 障礙；意外障礙；突出物
• vt. 抓住機會；造成阻礙；清除障礙物
• vi. 被絆住；形成障礙

來自古諾斯語 snagi,晾衣架，掛衣鉤。引申詞義樹樁，樹枝，后用于指河道中被河水浸沒的 樹樁，暗樁，因而引申比喻義潛在問題，困難，障礙，引申詞義被勾住，被掛住等。

snag (n.)

1570s, "stump of a tree, branch," of Scandinavian origin, compare Old Norse snagi "clothes peg," snaga "a kind of ax," snag-hyrndr "snag-cornered, with sharp points." The ground sense seems to be "a sharp protuberance." The meaning "sharp or jagged projection" is first recorded 1580s; especially "tree or branch in water and partly near the surface, so as to be dangerous to navigation" (1807). The figurative meaning "obstacle, impediment" is from 1829.

snag (v.)

"be caught on an impediment," 1807, from snag (n.). Originally in American English, often in reference to steamboats caught on branches and stumps lodged in riverbeds. Of fabric, from 1967. The transitive meaning "to catch, steal, pick up" is U.S. colloquial, attested from 1895. Related: Snagged; snagging.

1. There is just one small snag—where is the money coming from?

只有一個小問題—錢從哪兒來？

來自《權威詞典》

2. The only snag is, I can't afford it!

惟一的困難是, 我付不起這錢!

來自《簡明英漢詞典》

3. It is to be expected that an experiment will sometimes run into a snag at first.

開始試驗時有時不很順手,也是很自然的.

來自《現代漢英綜合大詞典》

4. The school deals exclusively with children of high academic ability. There is a snag though, it costs ￡9,600 a year.

這所學校只招收學習能力強的孩子，不過還有個小問題——它每年的學費高達9,600英鎊。

來自柯林斯例句

5. A police clampdown on car thieves hit a snag when villains stole one of their cars.

警方打擊偷車賊的行動遭遇了一點小挫折：匪徒偷走了一輛警車。

來自辭典例句