be grateful to sb and seek ways to return his kindness;/救命之恩不敢忘，定將～，以報(bào)大德。I can never forget you’ve saved my life. I’m very grateful and will seek ways to repay your great kindness.
結(jié)草銜環(huán)jie cao xian huan
show gratitude even after one’s death
結(jié)草銜環(huán)jié cǎo xián huán
結(jié)草：把草結(jié)成繩子；銜環(huán)：嘴里銜著玉環(huán)。表示感恩報(bào)德之心終身不忘。express gratitude to one’s benefactor, be grateful to sb. and seek ways to return his kindness