采用铝制手柄，美观耐用，配置加重铁；
Aluminum handle, beautiful and durable configuration heavier iron;
铁路货运公司只能无奈地把美铁未支付的那些费用当作一部分运营成本。 如果负担再加重的话，他们的士气恐怕很难再提升起来。
Freight-rail people regard this glumly as just part of the cost of doing business, but their spirits will hardly lift if the burden grows.
之后，她又切钢和铁、搅拌混凝土，运转的机器、移动的建筑材料，所有加重噪声在我们身边。
And later, the cutting of the iron and steel, the stirring of the concrete, the running of the machines, the moving of those construction material, all aggravate the noise around us.
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