1.
Something immaterial that obstructs or impedes:
非物质的妨碍或阻碍物。
2.
The distance traveled by waves with no obstruction.
海浪没有阻碍物时所经过的距离.
3.
a sandbar that is an obstruction to navigation.
成为航行的阻碍物的沙洲。
4.
not encumbered with a physical burden or load.
没有受物质负担的阻碍。
5.
deliberately obstruct or prevent(sth)
故意妨碍或阻止（某事物）
6.
To close off or block with a barricade.
封锁，阻挡用障碍物来封锁或阻挡
7.
A railing, curtain, screen, or similar barrier.
障碍物栏杆、窗帘、屏幕或类似阻拦物
8.
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
9.
Cold weather retards the growth of the crops.
寒冷的气候阻碍农作物生长。
10.
slow down or impede by creating an obstruction.
通过制造障碍物使慢下来或阻止。
11.
prevent access to by barricading.
通过设置障碍物阻止进入。
12.
Nothing hindered me in my progress.
没有任何事物阻碍我的前进。
13.
To block or fill(a passage) with obstacles or an obstacle.
阻隔用一个或多个障碍物将（道路）堵塞
14.
A substance that retards or arrests a chemical reaction.
反催化剂延缓或阻碍化学反应的物质
15.
Lack of food may stunt the body.
缺乏食物会阻碍身体的发育。
16.
the act of concealing the existence of something by obstructing the view of it.
通过阻碍观察来隐藏存在物的行为。
17.
Something that hinders, obstructs, or impedes.
绊脚，障碍妨碍，阻碍或阻止的东西
18.
The act or an instance of hindering, obstructing, or impeding.
妨碍妨碍，阻碍或阻止的行为或事例