1. 堵塞：若给出 border-pixmap,则它覆盖缺TopIf 若 sibling 堵塞(occlude)该窗口,则将该窗口置于栈顶. 原子的生命周期与扣留(interning)客户不相关. 直到服务器复位前原子仍有定义(见draw-direction 仅是一个提示,

2. 封闭,遮断：include 包含,包括 | occlude 封闭,遮断 | preclude 妨碍,阻止

3. 闭塞：occassional 临时的 | occlude 闭塞 | occluded cyclone 锢囚气旋

4. 滞留：occidane 金钟烷 | occlude 滞留 | occludedgas 滞留气

1. block passage through

    e.g. obstruct the path

    Synonym: obstructobturateimpedejamblockclose up