1·They are the manual labourers who are behind the construction boom of Dubai.
他们是迪拜建造业飞速发展中的体力劳动者。
2·Some argue that it is unfair on manual labourers, whose life expectancy tends to be shorter, but this bias has always existed.
一些人认为这对从事体力劳动的人不公平，他们的寿命通常较短。但这种偏见一直根深蒂固。
3·It is no surprise that joining the German mainstream is hard for children of manual labourers who were once expected to return home.
劳工曾经希望能回家，对于他们孩子来说，难以融入德国主流社会没什么稀奇的。