玉有五德：仁、义、智、勇、洁。中国古代有君子以玉比德，君子必佩玉，君子无敌，玉不去身。

There are five DE: jade of benevolence, righteousness, wisdom, brave, clean. An ancient Chinese gentleman with jade bede, gentleman will peja jade, jade, gentleman invincible not to body.

youdao

(in Chinese)郭玉红，王君，刘起勇，等。登革热传播媒介伊蚊综合治理研究[J]。中国媒介生物学及控制杂志，2008,19 (6)：588—590。

Guo YH, Wang J, Liu QY, et al. Study on comprehensive control against Aedes of dengue vector [J]. Chinese Journal of vector Biology and control, 2008, 19 (6) : 588-590.

youdao