腰を入れて勉強に取り組むの英語

Bear down in one's studies.

Let's sit down and consider.

to work hard―study with diligence

Try to focus on your studies.

to sit down―seat oneself―（on something）

Study as hard as one can

physical posture of carrying the upper body straight and stiff

bump and grind

to work with all one's heart and soul

to beat one into industry

to get tired of―grow weary of―study

to grind away―hammer away―peg away―plod away―pound away―（at English）

the state of being in a vulnerable position

He is intent on his studies.

a straw skirt wrapped around the waist

Persevere in your efforts!

to persevere in one's efforts

I have entered the company's service for a time （till I find a better berth）.

a posture of half bending at the waist

the act of using one's waist

the way of using one's waist

to work till late at night

to work hard―study with diligence

the state of being seated down

dig in and study[work, help]

to be determined to accomplish one's purpose

gird your loins

Don't be distracted while studying.

in judo, a hip technique called 'ushirogoshi'

intense in one's studies