A safety strap is used to prevent falling.

要系上安全带防止跌下。

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I reached across the boy, feeling along the safety strap.

我到达过男孩，向前感觉安全绳。

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The safety helmet is held on by an elastic strap.

安全帽用一根松紧带系住。

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The safety helmet is held on by an elastic strap.

安全帽用一根松紧带系住。

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