verb
to live off one's past gains or past glory; to live on one's fat; rest on past achievements; to rest on one's laurels (syn.) 食老本
但她不吃老本，早已有了未來的宏偉計劃。
但她不吃老本，早已有了未来的宏伟计划。
dàn tā bù chī lǎo běn ， zǎo yǐ yǒu le wèi lái de hóng wěi jì huà ． Instead of coasting on her success, she already has big plans for the future.
他失業後盡吃老本。
他失业后尽吃老本。
tā shī yè hòu jìn chī lǎo běn ． After he lost his job, he had to use up all his savings.
Examples (Wiktionary)
Mandarin
但她不吃老本，早已有了未来的宏伟计划。
但她不吃老本，早已有了未來的宏偉計劃。
dàn tā bù chī lǎo běn ， zǎo yǐ yǒu le wèi lái de hóng wěi jì huà ．
Instead of coasting on her success, she already has big plans for the future.