Yabla video uses of 经久

突出 tūchū
特点 tèdiǎn
就是 jiùshì
泸州 Lúzhōu
yóu
zhǐ
sǎn
经久 jīngjiǔ
耐用 nàiyòng
Prominent features include their durability
这种 zhèzhǒng
毒气 dúqì
zài
通风 tōngfēng
de
可以 kěyǐ
经久 jīngjiǔ
sǎn
This toxic gas can last for a long time inside a closed-up, unventilated tomb.