如今，地上的建筑早已被兵火毁灭，但那些深藏地下的物品却被长久保留下来。
The structures of these places above the ground have long been destroyed, but the objects underground are still there.
结论下颌骨粉碎性骨折应用钛合金板优于骨科钢板，且可长久保留。
Conclusion Ti-alloy plate is superior in fixation of mandibular comminuted fracture to orthopedic steel plate and can retain longer.
在短周期对象销毁后，长周期对象对短周期对象的弱引用依然会长久保留下来。
The weak reference from the long-lived object to the short-lived object is kept long after the short-lived object has been destroyed.
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