The U.S. Defense Department says its military plane dropped the largest non-nuclear bomb ever used in combat, a 10,000-kilogram bomb, on an Islamic State target in Afghanistan.
The bomb is called the Massive Ordnance Air Blast (MOAB). Based on its acronym, the U.S. Air Force has nicknamed it the "Mother of All Bombs."
Defense Department spokesman Adam Stump said it was the first-ever combat use of the bomb. Also known as the GBU-43, the bomb was developed more than ten years ago.
The bomb was dropped in response to IS' increasing use of bunkers and underground passages to "thicken their defense," General John Nicholson, commander of U.S. forces in Afghanistan said.
The Pentagon did not indicate how much damage was done to the IS stronghold or whether there were any injuries.
Besides the MOAB, the U.S. Air Force has an even larger bomb known as the Massive Ordnance Penetrator, or MOP. Despite its size, the MOP carries less explosive than the MOAB. It is designed to take out deeply buried targets like reinforced bunkers.
The MOP has never been used in combat.
I'm Dorothy Gundy.
The meaning of the acronym EPMO varies , mainly as a result of structural or functional needs.
缩写 EPMO 的含义总在变化，这主要是由于结构的或功能的需要 。
When he got older I nicknamed him Little Alf.
Thicken the broth with the mashed potato.
...massive air attacks.
1.Based on its acronym, the U.S. Air Force has nicknamed it the "Mother of All Bombs."
be based on... 以……为基础
All of the work we do is based on science.
The plan of our country is based on a rising economy.
2.The bomb was dropped in response to IS' increasing use of bunkers and underground passages to "thicken their defense,"
in response to... 回应……
He beat his classmate in response to the latter's trying to humiliate him.
In response tothe bombing of impolite questions, he just smiled.
美国国防部(U.S. Defense Department)表示，其军用飞机已投下了战斗中使用过的最大非核炸弹，该炸弹有1万公斤重，目标是阿富汗境内的IS组织
这枚非核炸弹名为“大型空爆炸弹”(MOAB, Massive Ordnance Air Blast) 。在这个简写缩略词的基础上，美国空军还为它起了一个别名“炸弹之母” 。
国防部发言人亚当(Adam Stump)表示，这是“炸弹之母”第一次用于战斗中 。炸弹之母有一个世人皆知的称号是GBU-43，是10多年前就研制出来的一个型号 。
投掷“炸弹之母”是为了回应IS加大力度使用掩体(bunkers)和地下通道以“加强防御”的行为，美国驻阿富汗部队指挥官约翰 尼科尔森(John Nicholson)这样说道 。
除了“炸弹之母”外，美国空军还有一个更大型的炸弹，名为“巨型钻地弹”(MOP, Massive Ordnance Penetrator) 。虽然型号（比MOAB）更大，MOP可携带的炸弹量要少于MOAB 。MOP的研制初衷是消灭深埋于地下的目标，如加固掩体等 。
Dorothy Gundy为您播报VOA慢速新闻 。