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VERB
發射（火箭、導彈或衛星）
To launch a rocket, missile, or satellite means to send it into the air or into space.
例句
NASA plans to launch a satellite to study cosmic rays...
美國國家航空航天局計劃發射一顆衛星上天，對宇宙射線進行研究。
A Delta II rocket was launched from Cape Canaveral early this morning.
今天一早，一枚“德爾塔”Ⅱ型火箭在卡納維拉爾角發射升空。
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VERB
使（船）下水；使（新船）首次下水
To launch a ship or a boat means to put it into water, often for the first time after it has been built.
例句
There was no time to launch the lifeboats because the ferry capsized with such alarming speed.
渡輪瞬間傾覆，根本沒時間放救生艇下水。
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VERB
開展（重大活動）；發起，發動（軍事襲擊等）
To launch a large and important activity, for example a military attack, means to start it.
例句
Heavy fighting has been going on after the guerrillas had launched their offensive...
游擊隊發起攻擊后，激烈的戰斗一直持續不斷。
The police have launched an investigation into the incident...
警方已對該事件展開調查。
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VERB
推出，發布（新產品）
If a company launches a new product, it makes it available to the public.
例句
Crabtree & Evelyn has just launched a new jam, Worcesterberry Preserve...
瑰珀翠剛推出一款新果醬——伍斯特漿果果醬。
Marks & Spencer recently hired model Linda Evangelista to launch its new range.
瑪莎百貨最近聘請模特兒琳達·埃萬杰利斯塔為其發布新系列產品。
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N-COUNT
（在江河、湖泊和港口載人的）大型汽艇
A launch is a large motorboat that is used for carrying people on rivers and lakes and in harbours.
例句
The captain was on the deck of the launch, steadying the boat for the pilot...
船長站在汽艇甲板上為領航員保向。
We'll make a trip by launch to White Island.
我們將乘汽艇到懷特島。