What is the commonest living thing on earth ?

地球上最常见的生物是什么？

The starling is now one of america 's commonest birds .

现在这种八哥已是美国最常见的鸟类。

Fish : the commonest are tiddlers such as minnows and sticklebacks .

鱼类：最常见的是像鲤鱼和刺鱼这样的小鱼。

The world health organisation predicts that by 2010 depression will become the second commonest disease in the developed world .

世界卫生组织预测，抑郁症在2010年将成为发达国家的第二大常见病。

In general , one of the commonest problems of government reflation is that the benefits leak out beyond your borders because the programme sucks in imports .

总的来说，政府通货再膨胀政策所面临的最常见问题是通过进口而导致该政策产生的福利流失到国外。