The workers on the construction site should put on their safety helmets before starting to work.

建筑工地上的工人在开始工作以前都必须戴上安全帽。

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They put on their safety helmets before starting to work.

他们在工作开始以前戴上安全帽。

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Managing to stop panicking and trembling, we quickly put on our protective suits, helmets and boots and eventually made our way to a safe place.

我们努力使自己不要惊慌和颤抖，迅速穿上保护套装、头盔和靴子，最后成功前往安全的地方。

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But the module was freezing cold, so Neil and I put on our helmets, and I turned the heat full-up.

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Investors who piled into the car battery market attracted by the flow of federal largesse had better put on their crash helmets.

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Many post them on the bulletin boards, share them with companions, and put them inside helmets as they go on operations.

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