兼

and (concurrently; e.g. chauffeur and secretary)

serving concurrently as

serving concurrently as

equilibrium

to have both

perusing as a side business

to be unable to

multi-use

part-time farmer

operating or carrying on simultaneously

constraint

holding another position

the greater embraces the less

concurrently studying the teachings of two or more different schools or sects

unisex

holding of concurrent (official) posts

working twice as hard

prime minister also serving as foreign minister

having both

carrying on a second line of work

to serve at the same time

likely to do

serving concurrently as

subject for a poem (announced prior to a meeting of poets)

part-time mom

well up in both literary and military (martial) arts

something so difficult that one doesn't know if there's even a 1 in 1000 chance of success

carrying on a second line of work

being proficient in both

Buddhist temple without a dedicated head priest

studying two subjects together (e.g. as a major and a minor)

Kanematsu-NNK Corporation

around-the-clock

combined use

likely to do

having both (wide) knowledge and (high) virtue

having both wisdom and courage

uniting

to combine with

to be reluctant to do

since long ago

quite capable of ...

additional post

living room-cum-dining room

big heads have little wit

(a woman) being gifted with both intelligence and beauty

living room and bedroom

president and chief executive officer

concurrent jurisdiction (esp. of an embassy serving neighboring countries)

serving concurrently as

Toyotamaphimeia machikanensis (Japanese fossil species of crocodilian)

to be unable to endure

to be unable to bear (something) any longer