对他们来说，商业和经济的发展是推动文明社会发展的动力。

For them, commerce and economic development were agents of civilization.

youdao

除了在黑暗时代之外，旅游业一直在持续发展壮大，并且贯穿有记录以来的历史，始终在各文明及其经济的发展中扮演着至关重要的角色。

Travel, except during the Dark Ages, has continued to grow and, throughout recorded history, has played a vital role in the development of civilisations and their economies.

youdao

然而至今尚存的远古文明已经不多，礼物经济也不是一种标准。

There are few primitive cultures left on the planet, and gift economies are not the norm.

youdao