燃放

The people on the island are sending up smoke signals.

岛们在燃放烟雾信号。

The children are setting fireworks off in the garden.

孩子们在花园里燃放烟火。

Setting off firecrackers makes a tremendous noise and causes serious air pollution.

燃放鞭炮会产生巨大噪声,重污染大气。