跟 | gēn | heel / to follow closely / to go with / (of a woman) to marry sb / with / compared with / to / towards / and (joining two nouns) | |
钉 | dīng | nail / to follow closely / to keep at sb (to do sth) / variant of 盯[ding1] | |
跟脚 | gēn jiǎo | to feet the feet perfectly / to follow closely / hard on sb's heels |