食之無味，棄之可惜

lit. to be hardly worth eating, but it would still be a pity to discard it (idiom) / fig. some things have little to no value, yet one is still reluctant to part with them

to eat / food / animal feed / eclipse

to feed (a person or animal)

(possessive particle, literary equivalent of 的[de5]) / him / her / it

not to have / no / none / not / to lack / un- / -less

tasteless / odorless

taste / smell / (fig.) (noun suffix) feel / quality / sense / (TCM) classifier for ingredients of a medicine prescription

to abandon / to relinquish / to discard / to throw away

can / may / able to / to approve / to permit / to suit / (particle used for emphasis) certainly / very

used in 可汗[ke4 han2]

it is a pity / what a pity / unfortunately

to cherish / to begrudge / to pity / Taiwan pr. [xi2]