lì / shǐ / kè / shàng / lǎo / shī / jiǎng / jiě / le / liè / biàn / zhà / dàn / duì / zhàn / zhēng / hé / rén / lèi / shè / huì / de / yǐng / xiǎng

历史课上，老师讲解了裂变炸弹对战争和人类社会的影响。

In history class, the teacher explained the impact of fission bombs on war and human society.