这种在邮票图案与图画明信片之间的和谐必须是尽可能在视觉直观上能够被证实的。

This concordance between the illustration of the postage stamp and the one of the picture postcard must be as possible and visually verifiable.

youdao

尽可能多地收集有趣的图片、地图、图画、明信片、照片和海报，你可以周它们来更清楚地解说某些中心点。

CoLlect as many interesting pictures, maps, drawings, postcards, photos and posters as possible. You can use them to explain some of the pomts more clearly.

youdao