When they made this return journey, they began their characteristic nest-searching behaviour, quartering the ground in detail looking for the entrance, after travelling about ten metres.

返回时，它们特有的觅巢行为就开始了，即在行走了大约10米远后，它们会在地上仔细地刻下指向蚁巢入口的标记。

youdao

Such behaviour has led to much soul-searching.

这样的行为让人进行深刻的自我反省。

youdao

When they made this return journey, they began their characteristic nest-searching behaviour, quartering the ground in detail looking for the entrance, after travelling about ten metres.

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We ought to be ruthless about searching out improper behaviour.

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