| 例句 |
hard-coreadjective firmly established over timethe hard-core habits that generate our mountains of trash everyday will be extremely difficult to change bred-in-the-bone, confirmed, deep, deep-rooted, deep-seated, entrenched(also intrenched), inveterate, rooted, settled firm, fixed, frozen, hard, hard-and-fast, immutable, irradicable, set, unalterable, unchangeableembedded(also imbedded), implanted, inculcated, instilledinborn, inbred, ingrained(also engrained), inherent, innate, integral, intrinsic, naturalaccustomed, chronic, customary, habitual, regular, typical, usualabiding, enduring, lifelong, persistent, persisting brief, ephemeral, fleeting, impermanent, interim, momentary, provisional, short-lived, short-term, temporary, transient in 1841 |