古迹之所以可以放这么久,就是因为以前的建筑质量好,不但材料优质,建筑技术也巧妙。
gǔjì zhīsuǒyǐ kěyǐ fàng zhème jiǔ ,jiùshì yīnwèi yǐqián de jiànzhù zhìliàng hǎo ,bùdàn cáiliào yōuzhì ,jiànzhù jìshù yě qiǎomiào 。
The reason why the monuments can be kept for so long is because the previous buildings are of good quality, not only the materials are high-quality, but the construction techniques are also ingenious.