最大的障碍是那些有很强视觉质感却又很少显著标记物的东西。

The biggest obstacles are in one category: Objects without a strong "visual texture," and with few distinct markings.

youdao

最大的障碍是那些有很强视觉质感却又很少显著标记物的东西。

The biggest obstacles are in one category: Objects without a strong "visual texture," and with few distinct markings.

youdao