The shipping crew fired a skyrocket to signal the coast guard during the storm.

暴風雨期間，貨運船員發射了一枚信號火箭向海岸巡防隊求救。

Every cargo vessel must carry at least two skyrockets according to the new safety policy.

根據新的安全規定，每艘貨輪必須至少配備兩枚信號火箭。

Our travel group watched the rescue team launch a skyrocket toward the stranded ferry.

我們的旅遊團看著救援隊朝受困的渡輪發射信號火箭。