电缆由数以千计电线组成，被高做的可拉长的钢，是抵抗腐蚀的镀锌电镀。
The cables are composed of thousands of wires, made of high-tensile steel, which are galvanized to resist corrosion.
健康的头发非常富有弹性，可拉长20%或30%而不断。
Healthy hair is highly elastic and can stretch 20 or 30 per cent before snapping.
健康的头发非常富有弹性，可拉长20%或30%而不断。
Healthy hair is highly elastic and can stretch20or30per cent before snapping.
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