做动词时，launch的基本含义是开始从事，发起，尤指发动有组织的活动，也可以指“首次上市，发行”。launch用作名词时表示“发射”，后面常接飞船、卫星、火箭、导弹等之类的名词，还可以指船的下水、产品的上市、事件的发起等。动词launch与副词out和介词into连用时，意思是投身，着手，开始。
launch的过去式例句1. A Delta II rocket was launched from Cape Canaveral early this morning.
今天一早，一枚“德尔塔”Ⅱ型火箭在卡纳维拉尔角发射升空。
2. The armed forces have launched offensives to recapture lost ground.
这支武装部队已发动进攻要夺回失去的阵地。
3. The army now appears to have launched a counter-offensive.
军队现在似乎已经发起了反攻。
4. In 1957, the Soviets launched Sputnik 1 into outer space.
1957年，苏联人将“斯普特尼克1号”人造卫星送入了外层空间。
5. Bennett launched a crusade for "moral values" against decadent "liberal relativism."
贝内特发起了一场捍卫“道德价值”、反对腐朽堕落的“自由相对论”的战争。
6. He then launched a scathing attack on previous leaders.
他接着严厉地斥责了几位前任领导者。
7. The government has launched a campaign of television commercials and leaflets.
政府通过电视广告和传单的形式发起了宣传活动。
8. Geoff has launched himself into fatherhood with great enthusiasm.
杰夫满怀热情地做起父亲来。
9. Horrigan launched into a speech about the importance of new projects.
霍里根就新项目的重要性慷慨陈词。
10. Apacs has launched a campaign to improve the training of staff.
雅拍体育用品公司开展了加强员工培训的活动。
