The obvious difference of air pollution change rule in new year eve night of forbidden and not forbidden zones before the forbidden limit of cracker firing; and the change character after the limit were in these zones; meanwhile, the air pollution state in 2000~2006 spring festival period was evaluated.
分析了北京市鞭炮燃放禁改限前禁放区和非禁放区除夕夜大气污染变化规律的明显差异,以及禁改限后,以上区域大气污染变化的趋同特点。
The firecracker was expected to take two hours to finish burning.
鞭炮燃放时间预计长达两个小时。
The children are letting off firecrackers.
孩子们在燃放鞭炮。
The teenagers like to let off firecrackers.
青少年喜欢燃放鞭炮。
They set off firecrackers to celebrate the successful completion of the reservoir.
他们燃放鞭炮庆祝水库的胜利建成。
Many boys explode firecrackers on the Lantern Festival.
许多男孩在元霄灯节燃放鞭炮。
Setting off firecrackers makes a tremendous noise and causes serious air pollution.
燃放鞭炮会产生巨大的噪声,严重污染大气。
The Chinese set off firecrackers on New Year's Eve to welcome the New Year.
中国人在新年除夕燃放鞭炮来迎接新年。
On July4we set off fire crackers in many places.
７月４日开国纪念日，我们在各地燃放鞭炮。
you can hear someone setting off a string of the traditional red firecrackers
仍可听到有人燃放成串的传统大红鞭炮，
the crack of a whip; he heard the cracking of the ice.
点燃的鞭炮发出噼啪声。
We have firecrackers at New Year!
我们新年的时候放鞭炮。
They had to let off firecrackers by way of apology.
他们得放鞭炮赔礼。
Kids letting off firecrackers/feeling Both joy and fear
小孩放鞭炮,又爱又怕
Can we set off some firecrackers?
我们可以放些鞭炮吗?
They set off firecrackers and watch fireworks displays.
人们放鞭炮，看烟花。
began to set off firecrackers for the Spring Festival.
过春节放鞭炮的由来。
Granny, I want to set off firecrackers too!
姥姥，我也想放鞭炮。
The villagers beat drums and lit firecrackers
村民们敲锣打鼓放鞭炮，
