Al-Qaeda is a violent Islamist group that formed in the 1980s among Arab fighters in Afghanistan, in the war against the Soviet army. After that war it turned to attacking Western countries. Its best-known leader was Osama bin Laden.

Al-Qaeda is a violent Islamist groupAl-Qaeda（蓋達組織）是一個暴力的伊斯蘭主義團體， that formed in the 1980s在1980年代組成， among Arab fighters in Afghanistan由在阿富汗的阿拉伯戰士， in the war against the Soviet army在對抗蘇聯軍隊的戰爭中。After that war那場戰爭結束後， it turned to attacking Western countries它轉而攻擊西方國家。Its best-known leader它最有名的領導人 was Osama bin Laden是Osama bin Laden（賓拉登）。

The attack most students have heard of is 11 September 2001 in the United States: hijacked planes hit the World Trade Center in New York and brought it down; another hit the Pentagon; a fourth plane crashed. Thousands of people died. Governments then spent years hunting the group.

The attack most students have heard of大部分學生聽過的那次攻擊， is 11 September 2001 in the United States是2001年9月11日發生在美國的事件： hijacked planes hit the World Trade Center in New York被劫持的飛機撞上了紐約的World Trade Center（世貿中心） and brought it down並讓它倒塌； another hit the Pentagon另一架撞上了Pentagon（五角大廈）； a fourth plane crashed第四架飛機墜毀。Thousands of people好幾千人 died因此喪生。Governments then各國政府之後 spent years hunting the group花了好幾年追捕這個組織。

The Arabic name means “the base” or “the foundation.” Though actually people sometimes stick the name on any Islamist attack they see on the news; that is loose and often wrong. Spellings in English wander (al-Qaeda, al-Qaida); the group is the same.

The Arabic name這個阿拉伯文名字 means "the base" or "the foundation"的意思是「the base（基地）」或「the foundation（根基）」。Though actually不過話說回來， people sometimes stick the name人們有時候會把這個名字隨便套 on any Islamist attack they see on the news在任何他們在新聞上看到的伊斯蘭主義攻擊事件上； that is loose and often wrong這樣是很鬆散的說法，而且常常是錯的。Spellings in English wander英文的拼法會有些不同 (al-Qaeda, al-Qaida)（al-Qaeda、al-Qaida）， the group is the same但指的是同一個組織。