n. (尖利的)突出物, (衣服等的)戳破处, 断牙, 意外障碍

vt. 造成阻碍, 抓住机会, 抢到, 清除障碍物

[医] 牙余块

[经] 意料不到的障碍

Snag \Snag\, v. t. [imp. & p. p. {Snagged}; p. pr. & vb. n.
{Snagging}.]
1. To cut the snags or branches from, as the stem of a tree;
to hew roughly. [Prov. Eng.] --Halliwell.

2. To injure or destroy, as a steamboat or other vessel, by a
snag, or projecting part of a sunken tree. [U. S.]

3. To catch on a snag [5]

4. (Fig.) To obtain by a quick action, as though by snagging
[3] something passing by; -- often used of an
opportunistic or fortunate action.


Snag \Snag\, n. [Prov. E., n., a lump on a tree where a branch
has been cut off; v., to cut off the twigs and small branches
from a tree, of Celtic origin; cf. Gael. snaigh, snaidh, to
cut down, to prune, to sharpen, p. p. snaighte, snaidhte, cut
off, lopped, Ir. snaigh a hewing, cutting.]
1. A stump or base of a branch that has been lopped off; a
short branch, or a sharp or rough branch; a knot; a
protuberance.

The coat of arms
Now on a naked snag in triumph borne. --Dryden.

2. A tooth projecting beyond the rest; contemptuously, a
broken or decayed tooth. --Prior.

3. A tree, or a branch of a tree, fixed in the bottom of a
river or other navigable water, and rising nearly or quite
to the surface, by which boats are sometimes pierced and
sunk.

4. (Zo["o]l.) One of the secondary branches of an antler.

5. Any sharp protuberant part of an object, which may catch,
scratch, or tear other objects brought into contact with
it.

{Snag boat}, a steamboat fitted with apparatus for removing
snags and other obstructions in navigable streams. [U.S.]

{Snag tooth}. Same as {Snag}, 2.

How thy snag teeth stand orderly,
Like stakes which strut by the water side. --J.
Cotgrave.