obstacle

n. 障碍, 妨害物, 阻碍

ob.sta.cle

n.（名词）
One that opposes, stands in the way of, or holds up progress.
妨害物：反对或阻碍进步的事物

来源：
Middle English
中古英语
from Old French
源自 古法语
from Latin obst3culum
源自 拉丁语 obst3culum
from obst3re [to hinder]
源自 obst3re [阻碍]
ob- [against] * see ob-
ob- [反对] *参见 ob-
st3re [to stand] * see st3-
st3re [站立] *参见 st3-

<参考词汇><同义词>obstacle,obstruction,bar,barrier,block,hindrance,impediment,snagAll of these nouns refer to something that prevents action or slows progress.
所有这些名词都指阻止行动或延缓进步的事物，
Obstacle applies to something that stands in the way and must be removed, circumvented, or surmounted:
Obstacle 用于指挡在路中，必须被搬走或绕行或被克服的事物：
例句：
.We combat obstacles in order to get repose. (Henry Adams).Anobstruction makes passage or progress difficult:
.为了获得歇息，我们与困难斗争. （亨利·亚当斯）。Obstruction 使通过或前进变得困难：

例句：
a sandbar that is an obstruction to navigation.
成为航行的阻碍物的沙洲。

Bar andbarrier suggest an obstruction that confines or prevents exit or entry:
Bar 和barrier 暗示有限制或阻止出入的阻碍物：
例句：
.Tyranny may always enter—there is no charm, no bar against it—the only bar against it is a large resolute breed of men. (Walt Whitman).
.暴政可能总会产生——没有咒语，没有障碍——唯一阻碍它的是一群勇敢的人. （瓦特·惠特曼）。

例句：
.Literature is my Utopia . . . No barrier of the senses shuts me out from the sweet, gracious discourse of my book friends. (Helen Keller).
.文学是我的乌托邦…没有任何感官的障碍能阻止我与书中朋友们的美妙、优雅的交谈. （海伦·凯勒）。

Block suggests obstruction that effectively prevents all passage:
Block 暗示是有效地堵塞所有通道的阻碍物：
例句：
The student failed the examination because of a mental block.
那个学生因脑子迟钝而考试失败。

Hindrance andimpediment are applied to something that interferes with or delays passage or progress:
Hindrance 和impediment 用于指干涉或使通道或进步延缓：
例句：
.an attachment that would be a hindrance to him in any honorable career. (Thomas Hardy).
.一个对他来说，在任何引以为荣的事业中都将成为阻碍物的附属品. （托马斯·哈代）。

例句：
Overcrowded prisons are an impediment to the rehabilitation of criminals. Asnag is an unforeseen or hidden, often transitory obstacle:
过于拥挤的牢房对罪犯们精神重建造成阻碍。 Snag 是一个没有被预见到的或隐蔽的，常为暂时或短暂的阻碍物：

例句：
The tourist ran up against a snag in the form of a lost passport.
这个观光客碰到了一个麻烦，他丢失的护照