当我们要回家的时候，我们在沙滩上发现了一个打火机。

When we want to go back home, we found a lighter on the sands.

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当我们想起要回家的时候，最后一班船已开走了。

When we remembered to go home, the last ferry had left.

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当我们想起要回家的时候，最后一班船已开走了。

When we remembered to go home, the last ferry had left.

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