• vi. 打环；翻筋斗
• n. 环；圈；弯曲部分；翻筋斗
• vt. 使成环；以环连结；使翻筋斗

来自中古英语loupe,绳索，套，词源同leap,原义可能为套动物的套索或套圈，后用来指圈，环。词义演变比较farrow,furrow,pork.

loop (n.)

late 14c., "loop of cloth, rope, leather, etc.," probably of Celtic origin (compare Gaelic lub "bend," Irish lubiam), influenced by or blended with Old Norse hlaup "a leap, run" (see leap (v.)). In reference to magnetic recording tape or film, first recorded 1931. Computer programming sense first attested 1947.

loop (v.)

"to form a loop," c. 1400, "draw (a leash through a ring)," from loop (n.). Related: Looped; looping. Slang looped "drunk" is from 1934. Loop the loop (1900) originally was in reference to roller-coasters at amusement parks.

"Loop-the-Loop" is the name of a new entertainment which goes further in the way of tempting Providence than anything yet invented. The "Loop" is an immense circle of track in the air. A car on a mimic railway shoots down a very steep incline, and is impelled around the inner side of this loop. ... The authorities at Coney Island are said to have prohibited "looping-the-loop" because women break their corset strings in their efforts to catch their breath as they sweep down the incline, and moreover, a young man is reported to have ruptured a blood vessel in his liver. ["Philadelphia Medical Journal," Aug. 10, 1901]

1. I think that the vice president was in the loop.

我认为副总统是局内人。

来自柯林斯例句

2. These activists don't want to feel out of the loop.

这些活跃分子不想做局外人。

来自柯林斯例句

3. The road went in a huge loop around the lake.

那条路环湖绕了一个大圈。

来自《权威词典》

4. Loop the rope around the pole.

把绳子环绕在柱子上.

来自《简明英汉词典》

5. Loop the curtains up.

把窗帘卷起来.

来自《简明英汉词典》