求翻译：　　实用指导：如果外飘窗本身的结构宽度足够大，可直接在窗台上装饰;如果窗台较窄，可外接一部分，人为增加宽度，增加部分的榻下空间还可以储物。是什么意思？

　　Practical guidance: If the width of the structure of the floating window itself is large enough, directly in the window decoration; if the window is narrow, external part, artificially increased width, increase space can also store under the bed.