1.
prevent access to by barricading.
通过设置障碍物阻止进入。
2.
It traps dirt and other matter and keeps insects out.
它阻挡污垢和其它东西，阻止昆虫进入。
3.
Armed guards prevented us from entering the palace
武装卫士阻止我们进入宫殿。
4.
Today's anti-HIV drugs block the virus once it gets into a cell.
目前抗HIV药是HIV病毒进入细胞后进行阻止。
5.
block or inhibit the release and absorption of glucose into the blood stream.
阻止或抑制释放和吸收的葡萄糖进入血液流.
6.
The new ones will prevent the virus from ever getting in at all.
新型的药将能完全阻止病毒进入细胞内。
7.
It traps dirt and other matter and keep insects out.
它能够限制脏物和其它东西，阻止昆虫的进入。
8.
For several years the United States had been staving off the entry of Peking into the UN.
好几年来，美国一直在阻止北京进入联合国。
9.
When the ship was in dock, the dock gates shut to keep the water in.
轮船进入船坞时船坞门就关上以阻止水出去。
10.
A jar sealed to exclude outside air; an immigration policy that excludes undesirables.
为防止外部空气进入而密封好的坛子；阻止不受欢迎的人进入的移民政策
11.
"Barrier devices, such as condoms, diaphragms, cervical caps, female condoms (vaginal pouches), and vaginal sponges, prevent sperm from entering the uterus."
保险套、阴道海绵条、阴道隔膜和子宫帽等阻隔式避孕器,以阻止精入进入子宫。
12.
The snow hindered our progress.
大雪阻止了我们的前进。
13.
Barrier of stakes and barbed wire to impede an enemy's advance
（阻止敌人前进的）铁丝网
14.
prevent the progress or free movement of.
阻止进展或自由运动。
15.
The police nipped the plot in the bud.
警察阻止了阴谋的进行。
16.
A structure set up across a route of access to obstruct the passage of an enemy.
栅栏，路障，防御横跨地设在进入线路上，用来阻止敌人通过
17.
They also have long eyelashes that stop the sand from getting into their eyes.
它们还有长长的眼睫毛可以用来阻止沙子进入它们的眼睛。
18.
Also, it helps to prevent dust and other airborne contaminats from flowing into the room.
它还有助于阻止尘埃和空气所带的其它污染物进入室内。