Yabla Chinese

Yabla video uses of 用以
用以 yòngyǐ
防治 fángzhì
高 gāo
血脂 xuèzhī
in order to prevent high fat content in the blood.
而 ér
“字” "zì"
用以 yòngyǐ
表 biǎo
德 dé
while courtesy names were used to express one's own virtue.