n.战场( battleground的名词复数 )...

n.操场( playground的名词复数 )，游乐场，娱乐场，（某些集体聚会游乐的）园地...

playgrounds的音标：playgrounds的英式发音音标为：[p'leɪɡraʊndz]playgrounds的美式发音音标为：[p'leɪɡraʊndz]...

The asphalt playgrounds have been grassed over or sown with flowers.原来的柏油操场已经覆上了草皮或种满了鲜花。The creation of new playgrounds will benefit the local children.新游戏场的建立将有益于当地的儿童.The city has several playgrounds for children.这座城市...

foregrounds的音标：...

n.庭院，理由，渣滓，泥土( ground的名词复数 )，地面，[航海学]底，（工作、讨论等的）范围...

backgrounds的音标：backgrounds的英式发音音标为：['bækɡraʊndz]backgrounds的美式发音音标为：['bækɡraʊndz]...