例句：

　　Fighting has been ferocious.

　　戰(zhàn)斗一直很激烈。

　　My little brothers are always fighting.

　　我的小弟弟們總在打架。

　　Fighting continued sporadically for two months.

　　戰(zhàn)斗斷斷續(xù)續(xù)地進(jìn)行了兩個(gè)月。