I an a mechanician (electrician, Pipelayer, welder, carpenter, turner, blacksmith, builder, erector, riveter, rigger, concrete worker, engine-driver, repair worker).

• 我是一个机械钳工。（电工、管工、焊工、木工、车工、铁工、建筑工人、安装工人、铆工、起重工、混凝土工、司机、修理工）。