launch是什麼意思

例句：

The rocket was launched in March 1980.

這枚火箭發射於1980年3月。

The satellite had been inactive since its launch two years ago.

該衞星自從兩年前發射以來一直沒起作用。

The new model will be launched in July.

新型號產品將在七月推出。

The police have launched a major operation against drug suppliers.

警方發動了一次打擊毒販的'大規模行動。

overnment has launched a new offensive against crime.

政府發動了新的打擊犯罪攻勢。